You have chosen 'Commentary on 'De Anima'' by Franciscus Toletus, 'An American Indian model of the Universe' by Benjamin Lee Whorf and 'On the Conservation of Force' by Hermann von Helmholtz
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| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |