4 ideas
| 9283 | Our ancient beliefs can never be overthrown by subtle arguments [Euripides] |
| 15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
| 20239 | Unlike us, the early Greeks thought envy was a good thing, and hope a bad thing [Hesiod, by Nietzsche] |
| 10246 | The limit of science is isomorphism of theories, with essences a matter of indifference [Weyl] |