Philosophy Quiz - Epistemology Flashcards
Rationalism:
- Rationalists claim sensory knowledge is not a reliable source.
- They claim that your senses may be wrong.
- Reason, or rational thought, is a more reliable source.
Plato:
- Believed in the two worlds: the World of Forms and the World of Materials
- The visible material world changes constantly, poor source of information.
- The world of forms or ideas is the truest reality, it never changes.
Every human mind has the ability (with degrees) to access the world of forms.
a perfect, invisible universe known only to the mind.
Rene Descartes
-17th Century France – Descartes doubted that the senses could provide us with reliable knowledge
- The human experience offers no evidence for believing in anything.
The Evil Genius
- Descartes was troubled by the Evil Genius scenario.
- How do I know that right now, I am not simply under the control of an evil genius, that is making me THINK that this life is real?
Cogito Ergo Sum
- In doubting everything, Descartes realized that there were two things that he knew.
1 – he could not doubt that he was doubting
2 – he was doubting, therefore he must exist - From this deductive reasoning, he famously concluded, “Cogito ergo sum”. I think, therefore, I am.
Noam Chomsky
- Modern USA
- Studies linguistics at MIT, is a social critic and philosopher.
- The structure of human language is hard-wired into the human brain.
Language:
- Learning how to speak properly is an incredibly complex task.
- Yet most learn it by the time they are 3, without ever really been formally “taught” anything.
- All languages have a “deep structure” that we have knowledge of already in our brains.
Why Chomsky is a Rationalist
- Only the surface structure changes and forms all the languages of the world that exist today.
- Chomsky believes (after thousands of experiments) that language is innate in our brains.
- Innate knowledge used with reason = rationalist.
Rationalism: sense garbage
- A Theory that says that knowledge is a priori - BEFORE YOU USE YOUR SENSES (BECAUSE THEY ARE GARBAGE).
- Knowledge comes from exercising the human ability to reason
Empiricism
- Empiricists challenged the claim that knowledge comes from your reason (rationalist)
- All knowledge you have is acquired through the senses.
- You use inductive reasoning to draw conclusions about the world
Aristotle
believed that the world is made up of matter, perceived through the senses.
Inductive Reasoning:
- Aristotle believed that human beings use the process of inductive reasoning to gain knowledge.
- Make observations about an object and use them to draw conclusions about what that object may be
Aristotle believed…
each day we are confronted with objects in the real world that we perceive with our senses.
We then use inductive reasoning to identify them and understand them.
Thomas Aquinas
God surrounds us in the world, and the only way we can understand the world and therefore, God, is through the use of our senses
John Locke
Locke believed that the mind is a “tabula rasa” or a blank slate, at birth
Our Learning Looks Like This:
- Sense Experience
- Sensation
- Impression
- Reflection
- Idea
Simple versus Complex
- Simple ideas come from one sense, such as bitter, sour, cold, and hot
- Complex ideas are produced by the mind when it compounds and combines simple ideas.
Locke and the Sceptics
- Primary qualities are objective – like height and weight.
- Secondary qualities are subjective and rely on the viewer – like colour, taste and sound.
David Hume
Hume believed in Locke’s main ideas but took it all even further.
Matter of Fact/Relation of Ideas
Hume put all knowledge into one of two categories:
1) Matter of Fact
2) Relation of Ideas.
Relations of Ideas
- Knowledge that arises out of pure conceptual thought.
- 8 X 10 = 80
- They are true by necessity because being false would be a logical contradiction.
Matters of Fact
- Arises out of our interaction with the world and our experiences in it.
- The sun will rise tomorrow.
- They are not 100% true.
Extreme Scepticism
Matter of Fact – useful but not 100% true
Relation of Ideas – not useful but 100% true