You have chosen 'Principle of Life and Plastic Natures' by Gottfried Leibniz, 'Conjectures and Refutations' by Karl Popper and 'Philosophy in the Tragic Age of the Greeks' by Friedrich Nietzsche
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| A. | Justification Problems | |
| B. | Internal Justification | |
| C. | External Justification | |
| D. | Scepticism | |
| E. | Relativism |