You have chosen 'Isagoge ('Introduction')' by Porphyry, 'Intro to 'Philosophy of Logic'' by Dale Jacquette and 'Reply to Sixth Objections' by Ren Descartes
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| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |