You have chosen 'What is Logic?st1=Ian Hacking' by , 'The Foundations of Empirical Knowledge' by A.J. Ayer and 'On the Conservation of Force' by Hermann von Helmholtz
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Religion, or select a subheading: |
| A. | Polytheistic Religion | |
| B. | Monotheistic Religion | |
| C. | Spiritual Disciplines | |
| D. | Religious Issues |