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philosophy exam 2 GBSDJGBIBGD

🔎 Key Concepts to Know

1. OntologyWhat is Real?

  • Definition: The branch of philosophy that studies the nature of reality and existence.

  • Key Question: What exists? Is the world made of only physical stuff (materialism), or are there non-physical things like thoughts and souls (dualism)?

  • Example: Descartes believed the mind and body were separate, while Hobbes believed only matter exists.


2. EpistemologyHow Do We Know What We Know?

  • Definition: The study of knowledge and how we come to understand the world.

  • Key Question: Can we trust our senses, or could they deceive us?

  • Example: Descartes questioned reality, asking if an “evil demon” could be deceiving him.


3. TeleologyDoes Everything Have a Purpose?

  • Definition: The belief that things have a goal or purpose, often seen in religious or philosophical thinking.

  • Key Example: Aristotle believed eyes exist for the purpose of seeing. This is called “the plan” — the idea that everything has a designed purpose.


4. Efficient CausationWhat Caused It?

  • Definition: A concept that describes how events are caused by previous actions.

  • Key Example: A chair exists because someone built it.

  • Hobbes vs. Descartes:

    • Hobbes believed in efficient causes — things happen because of material interactions (matter and motion).

    • Descartes believed God could be a cause without directly interacting with the physical world.


👤 Key Philosophers and Their Ideas

1. Thomas Hobbes (Materialism)

  • Belief: Everything is made of matter and motion. There is no soul or non-physical entity.

  • Key Work: Leviathan (1651)

  • Key Concept:

    • State of Nature: Without government, people would live in constant fear and conflict.

    • Social Contract: People give up some freedom in exchange for security under a strong ruler.

  • Epistemology: Believed all knowledge comes from the senses. Thoughts are just motions in the brain.

💡 Quote Identification Clue:

  • If the quote talks about humans being selfish, needing authority, or avoiding chaos → Hobbes


2. René Descartes (Dualism)

  • Belief: The mind and body are two separate substances.

    • Mind: Thinks and has no physical location.

    • Body: Occupies space and follows physical laws.

  • Key Work: Meditations on First Philosophy

  • Key Concepts:

    • Cartesian Doubt: Doubting everything to find what is absolutely certain.

    • Cogito Ergo Sum: “I think, therefore I am.”

    • Evil Demon Hypothesis: Descartes imagined a scenario where an evil demon deceives him, leading him to doubt his senses.

    • Proof of God’s Existence: He argued that the idea of a perfect God must come from something real and perfect.

💡 Quote Identification Clue:

  • If the quote discusses doubt, thinking, the separation of mind and body, or proving God’s existence → Descartes


3. Princess Elizabeth of Bohemia

  • Belief: Criticized Descartes’ mind-body dualism.

  • Key Objection:

    • She questioned how a non-physical mind could cause a physical body to move.

    • Argued that interaction requires contact and extension (taking up space).

💡 Quote Identification Clue:

  • If the quote challenges how the mind and body interact → Princess Elizabeth


4. Gottfried Wilhelm Leibniz (Idealism)

  • Belief: Reality is fundamentally made of minds and ideas.

  • Key Work: Letters to De Volder

  • Key Concepts:

    • Pre-Established Harmony: Instead of the mind and body interacting directly, God set them up to run in perfect synchronization, like two clocks ticking together.

    • Force: Argued that motion isn’t just a change in position but involves an internal force.

    • Unity and Identity: Believed true unity is not just physical closeness but a mental or conceptual unity.

💡 Quote Identification Clue:

  • If the quote discusses force, harmony, or the nature of unity and identity → Leibniz


📝 How to Recognize Quotes on the Test

  • Hobbes:

    • Talks about materialism, humans being selfish, or the need for a strong ruler.

    • Mentions fear, war, or the “state of nature.”

  • Descartes:

    • Discusses thinking, doubting, or proving existence.

    • Mentions God, the soul, or the separation of mind and body.

  • Princess Elizabeth:

    • Questions how the non-physical mind can move a physical body.

  • Leibniz:

    • Talks about force, pre-established harmony, or the unity of objects.


🧠 Sample Questions for Practice

  1. Fill in the Blank:

    • “The belief that everything is made of matter and motion is called __________.” → Materialism

    • “__________ said, ‘I think, therefore I am.’” → Descartes

    • “The concept of __________ means that things have a designed purpose.” → Teleology

  2. Quote Identification:

    • “In the state of nature, the life of man is solitary, poor, nasty, brutish, and short.” → Hobbes

    • “I think, therefore I am.” → Descartes

    • “How can the soul of a human body determine the movements of its limbs?” → Princess Elizabeth

    • “Force is not merely the change of position but something inherent in objects.” → Leibniz

  3. Short Answer:

    • Explain the main difference between Hobbes and Descartes’ views on reality.

    • Describe Princess Elizabeth’s objection to Descartes’ dualism.

    • How does Leibniz’s idea of pre-established harmony address the mind-body problem?


Final Tips

  • Understand Key Terms: If you know terms like dualism, materialism, teleology, and efficient causation, you’re already halfway there!

  • Recognize Philosopher Styles: Think of Hobbes as practical and harsh, Descartes as skeptical and logical, Elizabeth as critical, and Leibniz as imaginative and idealistic.

  • Use Process of Elimination: On quote identification questions, if it’s about doubt or thinking, it’s likely Descartes. If it’s about chaos and rulers, it’s Hobbes.

Good luck! You’ve got this! 💡

4o