You have chosen 'Purifications (frags)' by Empedocles, 'Structure of Scientific Revolutions (2nd ed)' by Thomas S. Kuhn and 'Rules for the Direction of the Mind' by Ren Descartes
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 |