Plato s Theory Of Forms Essay - 1427 Words

Plato was a standout amongst the most innovative and persuasive masterminds in Western philosophy, his impact all through the historical backdrop of philosophy has been monumental. Born around 428 B.C, he researched an extensive variety of topics; however, his Theory of Forms, found in The Republic, is an essential piece of Plato s philosophy. This is the center thought behind Plato s theory of forms, from this thought he moves towards clarifying his universe of forms or ideas. While trying to give the definition to elusive universals, Plato constructs a Theory of Forms to demonstrate that the sensible universe of particulars are simple impersonations of this present reality where forms live, autonomous of thought and existing in their own metaphysical realm that can be retrieved through the mind using reason. To further explain Plato’s theory of the forms, it can essentially be portrayed as otherworldly presences which are found in an alternate world from the physical world; the realm of forms. There is only one form of everything and it exists in this world of forms, everything else is just a copy -- thoughts are impeccable, the copies are flawed. The structures themselves, as indicated by Plato, are everlasting and endless. For instance, the concept of beauty remains constant and unchanging. In its place, the be auty we see in the physical world may be superficial and be seen in colors, animals or even human beings in varying degrees of beauty; however, theseShow MoreRelatedPlato s Theory Of Forms1629 Words   |  7 Pagesfew philosophical theories are as essential as the theory of Forms. This is besides the fact that it is generally overlooked in many of Plato’s writings even though it lays the foundations to many other theories of his. The Republic is where the theory is first mentioned, followed by discussion in Phaedo and criticized in Parmenides and Timaeus thereafter. (These works will be further discussed later throughout the essay.) Plato’s theory of Forms, (sometimes referred to as the theory of Ideas) statesRead MorePlato s Theory Of The Forms1704 Words   |  7 Pages Plato’s Theory of the Forms Travis Meyer PHI 1090 Introduction to Philosophy 12/16/2015 Plato was a Greek philosopher, mathematician, and theologian who lived from 424 BC to 348 BC in Athens, Greece. Plato was born into a high class family in Greece and therefore was very active in the Athenian community since he was from a high status family. He was the founder of the Academy in Athens, the first institution of higher learning in the Western world. He is known to be one of the bestRead MorePlato s Theory Of Forms1556 Words   |  7 PagesPlato’s theory of Forms as presented in the Phaedo. Plato has an idea that all ideas are merely abstract thoughts, and what we perceive with our senses is actually an imperfect version of these abstract thoughts. This is the basic idea of Plato’s theory of the Forms. To best illustrate the theory of the Forms to others, Plato explains his famous Allegory of the Cave. From the groundwork of the Forms, Plato goes on in Phaedo to argue the immortality of the soul. He intertwines the theory of the FormsRead MorePlato s Theory Of Form1111 Words   |  5 PagesPlato coined the term â€Å"Socratic questioning† to encourage the open discussion of philosophical theory for the purpose of improving said theory. Aristotle took advantage of the practice of Socratic questioning to inquire about Plato’s theory of Form and its explanation of causality in comparison to Aristotle’s own theories of causality and being. Aristotle criticizes Plato’s theory of Form because it only accounted for a one-dimensional explana tion of what things are made up of and what identifiesRead MoreQuestions On Plato s Theory Of The Forms1875 Words   |  8 Pagesevaluate Plato s response to the problem of the One and the Many. To do this, I will outline briefly the emergence of this problem in Greek thought in order to further understand and contextualise Plato s theory of the Forms. I shall then offer criticisms of his theory, both positive and negative, with particular regard for the ontological, epistemological, and cosmological consequences of subscribing to the Forms. I shall then conclude whether or not the metaphysical system constructed by Plato is aRead MoreThe Form Of Truth : Plato s Theory Of Knowledge893 Words   |  4 PagesProfessor Jones-Cathcart Philosophy 101 16 February 2016 The Form of Truth The physical world only has one constant - change. The human senses give an idea of the present reality. However, seeing is not believing. The perception we develop through the senses (seeing, smelling, tasting, touching, and hearing) does not consist of real truth. Real truth is not what is in front of us, but of absolute concepts and unchanging truths. Plato encouraged looking past what is directly visible in order toRead MoreThe Theory Of The Forms Figures Into Plato s / Socrates Reflections1471 Words   |  6 PagesIntroduction Forms are necessary or essential properties of a particular or thing. According to Socrates, these forms have properties which give them a certain causal power. Using the concept of Forms, he systematically constructs an argument in an attempt to prove that the soul exists and must always exist. Although, his complete conception of Forms is not captured in the Phaedo, We can still use this dialectic to address his arguments. In this paper, I will attempt to describe the Forms. To do thisRead MoreSocrates s Quest Of Truth1337 Words   |  6 PagesBorn in Athens in 437 B.C, Greek philosopher Plato is one of the most powerful thinkers in history. Coming from Greek aristocracy, Plato had political ambitions as a young man and appeared to follow the family tradition. However, Socrates and his dialectical method of inquiry, which was to question and answer everything to show ignorance, soon captivated Plato. Socrates spent most of his time in the streets and marketplace of Athens, approaching people like the sophist and other powerful leadersRead MoreA Life Sketch of Plato and His Works905 Words   |  4 PagesGreek philosophers, Plato must remain the best known of all the Greeks. The original name of this Athenian aristocrat was Aristiclis, but in his school days he received the nickname Platon (meaning broad) because of his broad shoulders. Plato was born in Athens, Greece to one of the oldest and most distinguished families in the city. He lived with his mother, Perictione, and his father, Ariston (Until Ariston died.) Born in an aristocratic and rich family, Plato s childhood was indulgedRead MoreExplain the Criticisms of Platos Theory of the Forms.1584 Words   |  7 PagesPlatos theory of forms, also called his theory of ideas, states that there is another world, separate from the material world that we live in called the eternal world of forms. This world, to Plato, is more real than the one we live in. His theory is shown in his Allegory of the Cave (from The Republic, Book VII), where the prisoners only live in what they think is a real world, but really it is a shadow of reality. According to Plato, to the prisoners in the allegory and to humanity in the material

Book Review on Poor Economics Free Essays

BOOK REVIEW POOR ECONOMICS: A RADICAL RETHINKING OF THE WAY TO FIGHT GLOBAL POVERTY By: Abhijit V Banerjee Esther Duflo POOR ECONOMICS argues that so much of anti-poverty policy has failed over the years because of an inadequate understanding of poverty. The battle against poverty can be won, but it will take patience, careful thinking and a willingness to learn from evidence. Banerjee and Duflo are practical visionaries whose meticulous workoffers transformative potential for poor people anywhere, and is a vital guide to policy makers, philanthropists, activists and anyone else who cares about building a world without poverty. We will write a custom essay sample on Book Review on Poor Economics or any similar topic only for you Order Now CHAPTER 1: THINK AGAIN, AGAIN Poverty and development can sometimes feel like overwhelming issues – the scale is daunting, the problems grand. Ideology drives a lot of policies, and even the most well-intentioned ideas can get bogged down by ignorance of ground-level realities and inertia at the level of the implementer. In fact, we call these the â€Å"three I’s† – ideology, ignorance, inertia – the three main reasons policies may not work and aid is not always effective. But there’s no reason to lose hope. Incremental, real change can be made. Sometimes the change seems small, but by identifying real world success stories, facing up to real world failures, and understanding why the poor make the choices they make, we can find the right levers to push to free the poor of the hidden traps that keep them behind. CHAPTER 2: A BILLION HUNGRY PEOPLE? Jeffrey Sachs, an advisor to the United Nations and director of Columbia University’s Earth Institute, is one such expert. In books and countless speeches and television appearances, he has argued that poor countries are poor because they are hot, infertile, malaria-infested, and often landlocked; these factors, however, make it hard for them to be productive without an initial large investment to help them deal with such endemic problems. But they cannot pay for the investments precisely because they are poor — they are in what economists call a â€Å"poverty trap. † Until something is done about these problems, neither free markets nor democracy will do very much for them. The basic idea of a nutrition-based poverty trap is that there exists a critical level of nutrition, above or below which dynamic forces push people either further down into poverty and hunger or further up into better-paying jobs and higher-calorie diets. These virtuous or vicious cycles can also last over generations: early childhood under-nutrition can have long-term effects on adult success. Maternal health impacts in  utero  development. And it’s not just quantity of food – quality counts, too. Micronutrients like iodine and iron can have direct impacts on health and economic outcomes. But if nutrition is so important, why don’t people spend every available extra cent on more calories? From the look of our eighteen-country dataset, people spent their money on food†¦ and festivals, funerals, weddings, televisions, DVD players, medical emergencies, alcohol, tobacco and, well, better-tasting food. CHAPTER 3: Low-Hanging Fruit for Better (Global) Health? Every year, nine million children under five die from preventable diseases such as diarrhea and malaria. Often, the treatments for these diseases are cheap, safe, and readily available. So why don’t people pick these ‘low-hanging fruit’? Why don’t mothers vaccinate their children? Why don’t families use bednets, or buy chlorinated water? And why do they spend such large amounts of money on ineffective cure instead? There are a number of possible explanations. These can include unreliable health service delivery, price sensitivity, a lack of information or trust, time-inconsistent behavior and the simple fact that the poor may not be able to tackle big, chronic illnesses. None of these reasons explains everything in isolation. But understanding what stops the immediate spread of our ‘low-hanging fruit’ – bednets, de-worming medication, vaccines, chlorinated water – is an important step in improving global health, and may finally help to eliminate health-based poverty traps. CHAPTER 4: TOP OF THE CLASS Over the past few decades, children have flocked into the schools, but schools seem to have delivered very little: teachers and students are often absent, and learning levels are very low. Why is this happening? Is it a supply issue, where the government needs to provide children with better schools, better textbooks, better teachers and better facilities? Or is it demand, where parents would lobby for quality education if and only if there were real benefits? There seems to be a problem with both. For example, parents expect both too much and too little from the schools: government jobs for those who graduate from secondary school, and nothing for the rest. Teachers seem focused on teaching small elite, and undervalue the regular students. These expectations affect behavior and generate real world waste. But the good news is that these expectations and these real world outcomes can be changed CHAPTER 5: Pak Sudarno’s Big Family Most policy makers consider population policy to be a central part of any development program. And yet, unexpectedly, it seems that access to contraception may not be the determining factor in the poor’s fertility decisions. So how can policy makers influence population? Instead of contraception, other aspects like social norms, family dynamics, and above all, economic considerations, seem to play a key role, not only in how many children people choose to have, but how they will treat them. Discrimination against women and girls remain a central fact of the life for many poor families. Going inside the â€Å"black box† of familial decision-making – that is, understanding how and why decisions are made the way they are – is essential to predicting the real impact of any social policy aimed at influencing population. CHAPTER 6: BAREFOOT HEDGEFUND MANAGERS The poor face a huge amount of risk – a friend of ours from the world of high finance once noted that they’re like hedge fund managers. These risks can come from health shocks – like an accident – or agricultural shocks – like a drought – or any other number of unexpected crises. Often, the poor just don’t have the means to weather these shocks, and so they get pushed into poverty traps. The steps they take to protect themselves form these risks are insufficient and often costly: they choose less profitable and less risky crop, they spread themselves too thin across a great number of activities; they exchange favors with neighbors. Yet all this doesn’t always even cover large shocks. CHAPTER 7: MICROFINANCE The fact that banks are often unwilling to lend to the poor, coupled with the extremely high interest rates moneylenders charge, was a call to action for the founders of microfinance. Enforcing credit contracts involves collecting extensive information about the borrower to ensure repayment. The high cost of gathering this information makes neighborhood moneylenders the easiest source of credit. Microfinance institutions rely on their ability to keep a close check on the customer, in part by involving other borrowers who happen to know the customer: This was a recipe for enormous success, there are more than 200 million microfinance borrowers today. Many MFIs were unwilling to evaluate whether their lending programs were helping the poor. The MFIs were financially sustainable and borrowers kept coming back, which the MFIs saw as proof enough. When an Indian MFI, Spandana, was rigorously evaluated, there was clear evidence that microfinance was working. People in Spandana neighborhoods were more likely to have started a business and made large purchases. However, there were no detectable impacts on women’s empowerment, spending on education or health, or in the probability that kids would be enrolled in private schools. One of the limits of microfinance is its inflexible structure and focus on â€Å"zero default. It may not be an effective borrowing channel for entrepreneurs who are willing to take risks and will go on to set up a large business. More established businesses do not find it that much easier to get credit. In particular, they run the risk of being too large for the traditional moneylenders and microfinance agencies, but too small for the banks. We need to see the equivalent of the microfinance rev olution for small and medium firms; figured out how to do it profitably on a large scale is the next big challenge for finance in developing countries. CHAPTER 8: SAVING BRICK BY BRICK Just as with lending, banks have not found a good way to adapt their services to the poor. The administrative costs associated with managing small accounts are too high. Instead, the poor find unusual and ingenious ways to save. They buying durable goods like jewelry or new bricks for their house. Many form savings â€Å"clubs† such as the popular rotating savings and credit associations (ROSCAs) in Africa. However, the fact that the poor have to adopt complicated and costly alternative strategies to save means that saving is harder than if they had a bank account: access to a saving accounts increases profits and consumption. With new technology and innovations like M-PESA in Kenya which allows cell phone users to send money with their phone, microsavings might become the next microfinance revolution. However, not all barriers to savings are externally imposed. The poor, like anyone else, easily give in to the temptation to spend money in the present rather than save it for the future. They have difficulty, for example, saving enough over a short season to buy fertilizer; but a program to help them buy it early increased fertilizer use. The poor may be more subject to temptations than the rich because the items they dream of may be further from their reach. Poor people who feel that they have opportunities have strong reasons to cut down on â€Å"frivolous† spending and invest in the future. Those who feel that they have nothing to lose, in contrast, save less: hope matters! CHAPTER 9: RELUCTANT ENTREPRENEURS Many expect that the poor will find successful business opportunities. They haven’t been given a chance, so their ideas are fresher: MFIs have many examples of successful clients, like a garbage collector turned recycling empress! The sheer number of business owners among the poor is impressive. When tiny grants were made to small businesses in Sri Lanka, their profits increased rapidly. However, while many of the poor operate businesses, most of these businesses are tiny. The businesses of the poor tend to have few if any employees and very limited assets. The businesses run by the poor are also generally unprofitable, which may well explain why giving them a loan to start a new business does not lead to a drastic improvement in their welfare. Many businesses suffer from the â€Å"empty shelf† problem: a space a created for a shop, but no inventory fills the shelves. Even a small investment in more inventory will have large marginal returns, but once the shelves are full, the business has no further scope to grow. Despite initial large returns to small investments, many small businesses hit at point at which a substantial capital investment is needed in order to continue growing. However, few people are willing to give such large loans to the poor. Because of this trap, the poor may not invest as much (both money but also emotions and intellectual energy) into their businesses because they know that their business will always remain too small to make real money. Often, the enterprises of the poor seem more a way to buy a job when more conventional employment opportunities are not available than a reflection of a particular entrepreneurial urge. One of the most common dreams of the poor is that their children become government workers – a stable, though not always an exciting job. A sense of stability may be necessary for people to be able to take the long view. People who don’t envision substantial improvements to their future quality of life may stop trying and end up staying where they are. Creating good jobs could go a long way in increasing the stability of the lives of the poor, which will, in turn give the poor the opportunity and the urge to invest in their children and save more. There are more than a billion people who survive off of the earnings of their own farm or business. We must be impressed by their resilience. But these small businesses will probably not pave the way for a massive exit from poverty. CHAPTER 10: POLICIES, POLITICS Even the most well-intended and well-thought-out policies may not have an impact if they are not implemented properly. Corruption, or the simple dereliction of duty, creates massive inefficiencies. Many people believe that until political institutions are fixed, countries cannot really develop. There may be no natural process to completely eliminate bad institutions. Institutional change from the outside is probably an illusion. But it is not clear that things will eventually fix themselves. However, fighting corruption appears to be possible to some extent even without fixing the larger institutions. Relatively straightforward interventions, such as threatening audits or publicizing corruption results have shown impressive success. Often, small changes make important differences. In Brazil, switching to a pictorial ballot enfranchised a large number of poor and less educated adults. The politicians they elected were more likely to target their policies to the poor. In China, even imperfect elections led to policies that were more favorable to the poor. In India, when quotas for women on village councils in India were enacted, women leaders invested in public goods preferred by women. Policies are not completely determined by politics. Good policies (sometimes) happen in bad political environments. For example, Suharto built tens of thousands of schools in Indonesia. And bad policies happen in good environments, because what the government is trying to do is hard: generally, the government tries to convince people to do something they would not like to do, like wearing a helmet on a motorcycle! The opportunities for corruption are rife. Bad policies are often a product of the three I’s: ideology, ignorance, inertia. For example, nurses in India, whose job description is so overwhelming that they have decided that they cannot possibly do it, and instead do nothing. Careful understanding of constraints can lead to policies and institutions that are better designed, and less likely to be perverted by corruption. Changes will be incremental, but they will sustain and build on themselves, and perhaps even improve the political process. How to cite Book Review on Poor Economics, Essay examples

The Different Cell Membrane Transport Mechanisms free essay sample

The different cell membrane transport mechanisms The cell membrane is referred to as a ‘fluid mosaic model’ because the protein part within the cell membrane used to be though of as an even layer spread over the outside and the inside of the phospholipid. Now we are starting to think that it is spread unevenly, more like a mosaic than a layer. The phospholipid part of the cell membrane is fluid; this means that its molecules are constantly moving about. Through the molecules constantly moving about it allows for things such as ‘transient gaps’ to occur, these are gaps within the phospholipids which allow molecules to pass through; they are only temporary. Here is a picture of the fluid mosaic model: [pic] Both water-soluble (hydrophilic) and lipid soluble (hydrophobic) substances are able to pass across the cell membrane. It is easier for lipid-soluble compounds to pass relatively quickly through by dissolving in the lipid layer. Water needs to pass through via osmosis where as water-soluble substances cross the membrane through simple diffusion, facilitated diffusion and active transport. Osmosis is thought of as the diffusion of water from an area of high concentration of water molecules to an area of low concentration, across a partially permeable membrane. To define osmosis more accurately we define it in terms of water potential. Water potential is a measure of how easy it is for water molecules to move. Diffusion occurs because substances attract a ‘cloud’ of polar water molecules around them. The cloud is held by weak chemical bonds, including hydrogen bonds; this means that these water molecules cannot move freely. This is a picture of osmosis: [pic] Inside cells some solutes have a higher concentration inside than outside of the cell, this means in order to make it equal they need to move across the cell membrane against the concentration gradient. This means that they cannot get in by passive transport; passive transport is the diffusion of substances across a membrane, this is a spontaneous process and cellular nergy is not expended. Molecules will move from where the substance is more concentrated to where it is less concentrated. The rate of diffusion for different substances is not always the same even if the process is spontaneous; this is because membranes are selectively permeable. They must enter by way of a process known as active transport. It is called active transport because unlike passive transport it requires cellular energy. Active transport involves sp ecial molecules of the membrane called ‘pumps’. Pump molecules can pick up molecules and transport them to the other side of the molecule; where they are released by the pump. Pump molecules are globular proteins which span the lipid bilayer. The energy needed for active transport is used here; a reaction with ATP is required by the pump molecules to supply the metabolic energy to the process. Membrane pumps are specific to the particular molecules they work within; this is what makes selective transport. Here is a picture of active transport: [pic] Simple diffusion can take place in some of the carrier proteins found in the plasma membrane. Carrier proteins have binding sites which pick up specific molecules. They can only function in one direction and they require energy to change shape and move a solute. Simple diffusion is a passive process; this means that substances move down a concentration gradient and they do not need any input of energy from the cell, the rate of diffusion can be affected by a few things. Such as the difference in concentration between the area of high and the area of low concentration. The distance over which concentration occurs has an affect on the rate of diffusion; for example the thickness of the membrane which separates the areas of high and low concentration. The surface area which separates the area of high concentration from the area of low concentration affects the rate of diffusion. The higher the temperature is the more kinetic energy the particles possess and the faster they move; therefore this affects rate of diffusion. [pic] Facilitated diffusion is when diffusion is speeded up by specific proteins in cell membranes. These proteins are able to pass substances across the membrane faster than usual. Facilitated diffusion occurs along a concentration gradient and requires no metabolic energy, unlike active transport. There are only two types of proteins involved in facilitated diffusion; specific carrier proteins take particular substances, e. g. glucose, from one side of the membrane to the other. Ion channels are protein pores that can open or close to control the passage of selected ions, e. g. sodium and potassium. Facilitated diffusion occurs when molecules such as those that are soluble in water cannot pass through the phospholipids in the bilayer. When this happens they are transported across via the carrier proteins. Solute molecules moving about on either side of the membrane will randomly come into contact with their specific binding site. Once they bind, the protein changes shape and the molecules come off the binding site on the other side of the membrane. [pic] Both carrier proteins and ion channels are used during facilitated diffusion. Carrier proteins transport polar molecules across the membrane. The carrier protein is specific to the diffusing molecule. The molecule binds to the receptor on the carrier protein, and the protein changes shape (after an input of energy). The diffusing molecule ends up on the other side of the cell, where it is released. Ion channels are used for the transport of inorganic ions. They facilitate the diffusion of charged particles. The channels are lined with polar molecules. The charge particles move towards regions of opposite charge. The ion channels are usually specific to one particular ion.