display all the ideas for this combination of texts
4 ideas
23434 | There is no fact-value gap in 'owls should see in the dark' [Foot] |
23439 | Principles are not ultimate, but arise from the necessities of human life [Foot] |
20864 | Live in agreement, according to experience of natural events [Chrysippus] |
23435 | If you demonstrate the reason to act, there is no further question of 'why should I?' [Foot] |