You have chosen 'On Duties ('De Officiis')' by M. Tullius Cicero, 'Precepts for Advancing Science and Arts' by Gottfried Leibniz and 'On 'The Beginning of Philosophy'' by Ludwig Feuerbach
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 |