You have chosen '' by , 'Advice to a Young Tradesman' by Benjamin Franklin and 'A Universe from Nothing' by Lawrence M. Krauss
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Theory, or select a subheading: |
| A. | Speculations on Nature | |
| B. | Natural Kinds | |
| C. | Causation | |
| D. | Laws of Nature |