You have chosen 'Ars Magna' by Ramon, 'Letters to Regius' by Ren Descartes and 'The Central Questions of Philosophy' by A.J. Ayer
start again | choose another area for these texts | all the ideas for this combination of textsAll the ideas for Natural Theory, or select a subheading: |
A. | Speculations on Nature | |
B. | Natural Kinds | |
C. | Causation | |
D. | Laws of Nature |