You have chosen 'Philosophical Essay on Probability' by Pierre Simon de Laplace, 'The Gathas (seventeen hymns)' by Zoroaster and 'Letters to Descartes' by Elizabeth, Princess of Bohemia
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 |