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Skepticism by Mind Map: Skepticism

1. Three kinds

1.1. Commonsense: Healthy incredulity

1.2. Philosophical: doubt cherished ideas

1.3. Absolute: knowledge is impossible

2. Pyrrho of Elis

2.1. Based on Relativism

2.1.1. Reason

2.1.2. Sense perception

2.1.3. Custom

2.2. Lack of absolutes or Ten Modes of Doubt

2.2.1. Variety in animals

2.2.2. DIfferences in human beings

2.2.3. Different structures of the organs of sense

2.2.4. CIrcumstantial conditions

2.2.5. Disciplines, customs and laws

2.2.6. Intermixtures

2.2.7. Positions, intervals and location

2.2.8. Quantities and Formations of underlying objects

2.2.9. Frequency or rarity of occurence

2.2.10. Fact of relativity

3. Is Absolue Skepticism Coherent?

3.1. Impractical

3.1.1. Cannot live without\nassumption of knowledge

3.2. Impossible

3.2.1. Logical truth are undeniable

3.2.2. Presuppositions for meaningful\ndiscourse are necessary

3.2.3. Self-refuting

4. Augustine: Against the Academicians

4.1. Some truths are certain

4.1.1. Logical truths

4.1.2. Mathematical truths

4.1.3. Immediate perceptions

4.2. Not whether