13 ideas
| 14782 | Philosophy is an experimental science, resting on common experience [Peirce] |
| 14787 | Self-contradiction doesn't reveal impossibility; it is inductive impossibility which reveals self-contradiction [Peirce] |
| 23877 | Most people won't question an idea's truth if they depend on it [Weil] |
| 14783 | Logic, unlike mathematics, is not hypothetical; it asserts categorical ends from hypothetical means [Peirce] |
| 14788 | Mathematics is close to logic, but is even more abstract [Peirce] |
| 14786 | Some logical possibility concerns single propositions, but there is also compatibility between propositions [Peirce] |
| 14789 | Experience is indeed our only source of knowledge, provided we include inner experience [Peirce] |
| 14785 | The world is one of experience, but experiences are always located among our ideas [Peirce] |
| 23878 | Weakness of will is the inadequacy of the original impetus to carry through the action [Weil] |
| 468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
| 14784 | Ethics is the science of aims [Peirce] |
| 23879 | In a violent moral disagreement, it can't be that both sides are just following social morality [Weil] |
| 23880 | When war was a profession, customary morality justified any act of war [Weil] |