You have chosen 'On Duties ('De Officiis')' by M. Tullius Cicero, 'The Problem of Knowledge' by A.J. Ayer and 'The Origin of the Work of Art' by Martin Heidegger
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 |