You have chosen 'Commentary on 'De Anima'' by Franciscus Toletus, 'Sense Data and the Percept Theory' by Roderick Firth and 'Preface to 'De Revolutionibus'' by Andreas Osiander
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| A. | Justification Problems | |
| B. | Internal Justification | |
| C. | External Justification | |
| D. | Scepticism | |
| E. | Relativism |