You have chosen 'The Nature of Truth' by Harold Joachim, 'Ancient Thought in Modern Physics' by Werner Heisenberg and 'Critique of the Gotha Program' by Karl Marx
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Knowledge Sources, or select a subheading: |
| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |