You have chosen 'Law and Authority' by Peter (Pyotr) Kropotkin, 'Two Problems of Epistemology' by Karl Popper and 'Principles of Nature and Grace based on Reason' by Gottfried Leibniz
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| A. | Wisdom | |
| B. | History of Ideas | |
| C. | History of Philosophy | |
| D. | Nature of Philosophy | |
| E. | Nature of Metaphysics | |
| F. | Analytic Philosophy | |
| G. | Scientific Philosophy | |
| H. | Continental Philosophy |