You have chosen 'On boundary numbers and domains of sets' by Ernst Zermelo, 'De arcanus motus' by Gottfried Leibniz and 'Preface to 'Dorian Gray'' by Oscar Wilde
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| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |