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Socrates, Plato & The Sophist. The Sophists. Protagoras Gorgias Thrasymachus Argued that truth was relative. Taught rhetoric, the art of persuasion, regardless of the truth. Protagoras.
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The Sophists • Protagoras • Gorgias • Thrasymachus • Argued that truth was relative. • Taught rhetoric, the art of persuasion, regardless of the truth.
Protagoras • Man is the measure of all things. Of the things that are, that they are, of the things that are not, that they are not.
Relativism • Protagoras is a relativist about knowledge. • The question is what type of relativist? Is knowledge relative to the: Individual Culture Species
Protagoras regarding God • About the gods, I am not able to know whether they exist or do not exist, nor what they are like in form; for the factors preventing knowledge are many; the obscurity of the subject, and the shortness of human life. • Agnostic- undecided about god’s existence.
Views on God • Agnostic- undecided about god’s existence. • Atheist- God does not exist. • Theist- God exist
Gorgias • 1) That nothing exist • 2) That if anything does exist, it is incomprehensible • 3) That even if it is comprehensible, it cannot be communicated.
Can’t express knowledge • If reality is comprehensible, it cannot be accurately communicated. • He claimed that we communicate with words, • Words are only symbols or signs, • Symbols can never be the same as the thing they represent. • For this reason knowledge cannot be adequately communicated.
Impossible to Express • 1) People communicate with words • 2) Words are (symbols, signs, sounds) • 3) Words are not the same as the thingthey represent • 4) Our ideas are not the same as words. • 5) For this reason knowledge (our ideas) cannot be adequately communicated with words.
Skepticism • The idea that we do not have knowledge. • Gorgias’ skepticism lead him to the study and teaching of rhetoric.
Thrasymachus • Thra-sym-achus • Injustice Pays! • Justice is for the ignorant.
Thrasymachus • The wise pursue their own interest at the expense of others. • Might = Right. • A view echoed by Thomas Hobbes and Nietzsche.
Socrates(469-399 BC) • Socrates asked probing questions of the intellectual elite in Athens.
Socrates (469-399 BC) • All sources agree that Socrates was exceedingly ugly, had an unorthodox (lowly) manner of dress, and often wandered around barefooted.
The Oracle of Delphi • Declared by the Oracle at Delphi to be the Wisest of men- he said he was wise because he admitted his ignorance!
Dialogues or plays • Socrates taught orally and did not put his doctrines into writing. • He did not write books. His student, Plato, wrote dialogues that reflect his views. • These are accounts of debates.
Not a Sophist • Unlike the Sophists (who were paid for teaching wealthy aristocrats the skills of oration and persuasive argument) • Socrates charged no fees and taught students (including women) from various walks of life.
Socratic Method The Socratic Method is used to arrive at truth- The Essential Nature of Things. Also known as dialectic method, it is where you continue to question something until you arrive at a definition of the thing in question. (If that is possible)
The Trial of Socrates399 B. C. • Socrates was accused of Impiety- (refusing to acknowledge the gods recognized by the State ) • & Corrupting the young. • Jury of 500 Found Socrates Guilty. • Sentenced to Death… Could have escaped into exile. Choose to accept death sentence.
Socrates was found guilty by a jury of 500, sentenced to Death!
Plato 428-384 B.C. • Plato, the student of Socrates, founded the first University in the year 387- called the Academy. • Science and knowledge were the chief goals of study. • The mind was trained to cut thru rhetoric.
Plato’s Philosophy • Theory of Forms • Allegory of the Cave • Divided Line • Platonic Forms • Platonic Realism • Division of the Soul • Philosopher King • Memories of the Soul
Allegory of the Cave • Plato ask us to imagine… • …that men believe the shadows are real. • This is told in class, and it is told well. • Page 40 in Book.
Plato on knowledge • Plato thinks that because this world is constantly changing, that truth is this world is impossible. • Truth for Plato is something, eternal. • Objects in this world are not eternal, so are beliefs about them cannot always be correct.
Platonic Forms • PLATONIC FORMS: • UNIVERSAL IDEAS OR CONCEPTS • ETERNAL • CHANGLESS • TIMELESS • NON-MATERIAL ESSENCES
Platonic Forms Continued • All physical objects are copies of these original entities • They exist in another plain of reality- in an immaterial realm.
Imagining • Imagining is the lowest form of knowledge. • It is the lowest because the mind does not know it is just an image- it thinks the image is real (as in the CAVE) • An Imagine is an imperfect copy of a physical object. As such it is lower on the scale of knowledge than the physical thing.
Belief • A belief is held about some physical object. • Physical objects do not correspond to the “true” or “real” Form that they copy. • Beliefs about physical objects are not certain, because the objects and world are in a state of changing. • Physical objects are not eternal.
Thinking • Thinking is a deeper level of understanding. • One moves from the visible world, to the intelligible world of thought. • The objects of mathematics, such as numbers, sets, geometric figures and formula make up this level of knowledge.
Knowledge • Perfect Intelligence- Knowledge of the Forms. • At this level of understanding the mind grasp the unity of reality, and the truth that the ideas or Forms are what really exist!
Platonic Forms • Plato claimed that all physical objects copy the original, unchanging Form. • Physical objects are imperfect copies. • Like Heraclitus, he held that this reality is constantly changing and shifting. • What is true today may be false tomorrow in this world. • In the realm of the Forms- truth is eternal.
How are Forms related to one another. • Forms are related to one another. • For Example: • Form Animal Form Shape • Form Horse Form Circle Particular Horse Particular circle
How are Forms related to Particulars • Particulars- or Particular objects, partake of the Form. • Socrates partakes in the Form Man • The clock partakes in circle, clock, numbers… • How specific we need to get is a question.
Platonic Realism • The notion that Forms or Ideas exist in a separate reality is known as Platonic Realism.
Universals and Particulars. • This is an issue in metaphysics- • What is the relationship between ideas and objects. • Universals is another name for ideas or concepts. (General terms) • Particulars is another name for objects or individual things that we encounter in the world.
Ontological Status of Ideas • Platonic Realism • Exaggerated Realism • Conceptualism • Extreme Nominalism
Platonic Realism • Ideas are real. They have independent existence, apart from our thoughts. • For Plato Universals have Transcendental existence apart from the particulars that participate. The Form is the cause of the essence of a thing, and the particulars are said to imitate or copy the Forms in an imperfect way.
Exaggerated Realism • Exaggerated Realism is the notion that Universals exist in the particulars as part of what makes them similar. • The particulars are a mix or composite of form and matter.
Aristotle’s Exaggerated Realism • Aristotle did not accept Plato’s claim that there was a separate realm, or heaven of Forms. • Aristotle claimed that forms were real, but existed in the objects that we perceive and in our minds.
St. Anselm’s Exaggerated Realism • St. Anselm argued that the doctrine of original sin and of the Trinity required this interpretation of what ideas are.
Conceptualism • All ideas are real, but the are dependent upon a mind, or thought. • The function of a universal term is to denote a special relationship between particular objects. Universal are object concepts that we form in our minds by examining particulars.
Extreme Nominalism • Ideas are not real objects. They do not have real existence. • Only particulars or individuals exist in nature. A general term, a universal, such as a word does not refer to anything; it is only a word (voces), or a name (nomen), composed of letters and expressed as a vocal emission and is therefore only air.
How do we know the Forms • Why should we accept that there is a separate reality filled with ideas? • Plato claims that he remembers the Forms. • According to Plato our Soul is eternal, and once existed in the realm of the Forms.
Memories of the Soul • According to Plato our soul is eternal. It comes from the realm of the Forms and is infused with the body during pregnancy. • All of us had complete access to all the Forms • We all have within our soul, absolute knowledge.
Division of the Soul • According to Plato the soul is divided into three parts. • Tripartite conception of the soul. • Reason • Spirit • Appetite
Reason • Reason guides us rationally towards reasonable goals
Spirit • Spirit gives us the ability to comply with reason, to be brave and follow thru with our goals