17 ideas
| 21405 | Cicero sees wisdom in terms of knowledge, but earlier Stoics saw it as moral [Cicero, by Long] |
| 7914 | To try to be wise all on one's own is folly [Rochefoucauld] |
| 20871 | Unfortunately we choose a way of life before we are old enough to think clearly [Cicero] |
| 17963 | The facts of geometry, arithmetic or statics order themselves into theories [Hilbert] |
| 17966 | Axioms must reveal their dependence (or not), and must be consistent [Hilbert] |
| 17967 | To decide some questions, we must study the essence of mathematical proof itself [Hilbert] |
| 17965 | The whole of Euclidean geometry derives from a basic equation and transformations [Hilbert] |
| 17964 | Number theory just needs calculation laws and rules for integers [Hilbert] |
| 7118 | La Rochefoucauld's idea of disguised self-love implies an unconscious mind [Rochefoucauld, by Sartre] |
| 7912 | Judging by effects, love looks more like hatred than friendship [Rochefoucauld] |
| 7915 | Supreme cleverness is knowledge of the real value of things [Rochefoucauld] |
| 7917 | Realising our future misery is a kind of happiness [Rochefoucauld] |
| 7913 | Virtue doesn't go far without the support of vanity [Rochefoucauld] |
| 7916 | True friendship is even rarer than true love [Rochefoucauld] |
| 6031 | The essence of propriety is consistency [Cicero] |
| 9299 | We are bored by people to whom we ourselves are boring [Rochefoucauld] |
| 17968 | By digging deeper into the axioms we approach the essence of sciences, and unity of knowedge [Hilbert] |