topics for philosophy paper here.
proposal sample for your final paper here.
PLATONISM: Plato believes that reality is always changing, senses are illusory. Knowledge (episteme) needs to be permanent and unchanging.
For Plato, knowledge is acquired through anamnesis, which is an innate form of recollection, a sort of hardware we come with (for example, humans come with a memory function already built-in by our brain evolution).
Here comes the idea of Forms. Forms exist independently of us: Think of math, logic, geometry, etc. Plato believes these Forms are "universals." A universal is a property that can be possessed by many things at once. Examples of universals: "goodness," "beautiful," "extended," "redness," "human," etc. See that each applies to many things at once. Take "beauty", it is not a physical concept. So, how do we know it? It's a concept that applies to many different things.¿
Hay mucha discusión sobre realismo e idealismo.
¿Dónde están las formas? La palabra griega que Platón usa es εἶδος (eîdos), y también ἰδέα (idéa). Ambas están estrechamente relacionadas y suelen traducirse como «Forma» o «Idea». Pero ojo. La «Idea» platónica no significa lo que normalmente entendemos hoy por una idea.
1. Eîdos / idéa • εἶδος (eîdos) viene de una raíz relacionada con ver (ideîn, «ver»). • Originalmente significa algo como aspecto, figura, forma, aquello que se ve. • ἰδέα (idéa) tiene la misma raíz y también significa originalmente forma, aspecto, apariencia. Platón toma estas palabras y les da un sentido filosófico extraordinariamente preciso. Cuando habla de Idea de Belleza (to kalon), por ejemplo, no está hablando de: mi concepto de lo bello. Platón se refiere a aquello que hace que las cosas bellas sean bellas, una realidad inteligible que no depende de que alguien la piense.
2. La diferencia con nuestra «idea» Hoy decimos: «Tengo una idea para una película.» Aquí idea significa un contenido mental, algo que ocurre en la mente de alguien. Para Platón la Idea no está primero en la mente; la mente debe llegar a conocerla. ¿En las cosas? No. Entonces la Forma sería simplemente una propiedad. En nuestra mente → tampoco: entonces dependería de nosotros. En un ámbito inteligible → ¡Caliente! Es un ámbito, no físico.
Take a look at Plato's allegory of the CAVE.
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OTHER SCHOOLS
SKEPTICISM: An attitude of suspension to the possibility of knowledge or absolute knowledge.
It comes from Pyrrho of Elis (c. 365–275 bc). Pyrrhonists, while not asserting or denying anything, attempt to show that one ought to suspend judgment and avoid making any knowledge claims at all. The Pyrrhonist’s strategy is to show that for every proposition supported by some evidence, there is an opposite proposition supported by evidence that is equally good.
RATIONALISM: (Spinoza, Leibniz, Descartes) rationalism is the view that regards REASON as the chief source of knowledge. Rationalism is also a methodology or a theory in which the criterion of the truth is not sense-based but instead deductive.
There is a connection between Skepticism and Rationalism.
Descartes uses skepticism in his Cartesian method. Doubt requires further rational proof. There are three parts:
1- the Dream Argument, 2- the Evil Demon argument and the 3- the Cogito
argument (... I can't doubt that I doubt. Therefore I think, therefore I am). The conclusion is that Descartes believes that scientific knowledge can be derived a priori from "innate ideas" through deductive reasoning. Where these "innate ideas" come from? GOD.
EMPIRICISM: (John Locke, George Bishop, David Hume) Empiricism is the idea that experience as the main source of knowledge. It emphasizes the role of experience and evidence, especially sensory perception.
Here's an interesting video.
Empiricists believe in inductive reasoning (making generalizations based
on individual instances) in order to build a more complex body of
knowledge from these direct observations. This is the basis of modern
science, and the scientific method, is considered to be methodologically
empirical in nature, relying as it does on an inductive methodology for
scientific inquiry.
There are two schools: Locke's Representative Realism and Berkeley's Phenomenalism.
(Lockes's primary and secondary qualities)
For Locke, external physical objects cause our sensory experiences. Primary and secondary qualities explain why people perceive the same object differently.
The world is divided into realms of qualities: primary qualities, which exist in the object independently of our perception (solidity, motion, shape), and secondary qualities, which depend on our sense perception (sight, taste, hearing, touch, smell).
Berkeley believes that all qualities are secondary. As a result, there is no world independent of our perceptions, except what he calls unperceived perceptions. These are a bundle of perceptions caused by God.
David Hume's skepticism about cause and effect. Hume is an empiricist, so he believes that only experience gives us knowledge. This is why he remains skeptical about causation (the idea that every effect has a cause that makes it happen).
He goes: "Of two events, A and B, we say that A causes B when the two always occur together, that is, are constantly conjoined. Yet, we don't experience A causing B. We take the conjunction as a fact and are certain that this conjunction "will continue to happen."
This is known as Hume's problem of induction.
Causality is a posteriori, based on experience. We use induction to justify it. Now, can you conceive of yourself dropping a ball on Earth and it not falling? YES YOU CAN!
So, Hume says: "the contrary of every matter of fact never implies a contradiction." We are left with a weak notion of causal necessity.
KANT'S SYNTHESIS
Kant's synthesis between Empiricism and Rationalism.
Kant takes on Hume's challenge. He proposes the following:
a priori: analytic propositions are a priori (independent of experience): "all triangles have three sides," "all bachelors are unmarried males,"
a posteriori: synthetic propositions are a posteriori (based on experience): "Water boils at 100º C," "All creatures with hearts have kidneys."
Then he adds another type: synthetic a priori. Synthetic a priori refers to a type of judgment or knowledge that is both independent of experience (a priori) and informative or expansive enough (synthetic), meaning it adds new information to our understanding rather than just repeating a definition.
For example, "7+5=12" or "the shortest distance between two points is a straight line."
KANT'S CATEGORIES
LAS CATEGORÍAS KANTIANAS Cuando percibimos algo, ¿qué tiene que hacer nuestra mente para poder pensarlo como un objeto?
Comencemos con algo sencillo: «El vaso se rompió porque cayó al suelo.»
¿Qué tenemos ahí?
1. Algo: el vaso. → sustancia
2. Algo ocurrió: se rompió. → causalidad
3. Algo existió: el vaso existe. → existencia
4. El vaso es un vaso particular; tiene ciertas propiedades. → categorías de cualidad, cantidad, etc.
Kant NO dice que inventemos esas relaciones. Lo que dice es que, sin esas (categories of understanding) categorías del entendimiento, no podríamos organizar los datos sensibles como experiencia objetiva.
The synthetic a priori is a marvel!
1. Every event has a cause.
It's synthetic: the concept of an event does not logically contain having a cause.
Now, why is it a priori? Kant holds that causality is a category of the understanding, a condition for experience.
2. 7 + 5 = 12
Synthetic: the concept 12 is not simply contained in the concepts 7, 5, and addition. You could get 12 through endless addition.
Addition: 7 + 5 = 12
Multiplication: 3 × 4 = 12
Substraction: 15 − 3 = 12
A priori: we don't need to count twelve objects in experience to know it.
3. The shortest distance between two points is a straight line.
Synthetic: the predicate adds something to the concept of a straight line: two points.
A priori: its truth doesn't depend on measuring physical distances. This is probably the classic Kantian example of synthetic a priori knowledge.
KANT'S MIDDLE POINT BETWEEN RATIONALISM AND EMPIRICISM
RATIONALIST SIDE: Kant believes we bring categories with our perceptual apparatus. They are part of our reason capabilities. Ex: time, space, causation, quantity, quality, relation, modality, etc. He agrees with Hume that we do not experience these properties. They are not in the world. Instead, THEY ARE INNATE, HARDWIRED.
EMPIRICIST SIDE: Kant believes that experience is a posteriori: what the empiricists called SENSE DATA obtained through our senses, which is fundamental for the physical sciences.
So, Kant's synthesis proves that both Empiricism and Rationalism hold.
STANDARD ACCOUNT OF KNOWLEDGE: Knowledge is justified true belief.
K = JTB
