You have chosen 'Relations' by Fraser MacBride, 'Letters to a German Princess' by Leonhard Euler and 'Isagoge ('Introduction')' by Porphyry
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 |