You have chosen 'Mathematics without Numbers' by Geoffrey Hellman, 'Principles of Philosophy of the Future' by Ludwig Feuerbach and 'Against the Physicists (two books)' by Sextus Empiricus
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Thought, or select a subheading: |
| A. | Modes of Thought | |
| B. | Mechanics of Thought | |
| C. | Content | |
| D. | Concepts | |
| E. | Abstraction |