15 ideas
| 9198 | It is no longer possible to be a sage, but we can practice the exercise of wisdom [Hadot] |
| 9197 | The logos represents a demand for universal rationality [Hadot] |
| 11022 | Gentzen introduced a natural deduction calculus (NK) in 1934 [Gentzen, by Read] |
| 11065 | The inferential role of a logical constant constitutes its meaning [Gentzen, by Hanna] |
| 11023 | The logical connectives are 'defined' by their introduction rules [Gentzen] |
| 11213 | Each logical symbol has an 'introduction' rule to define it, and hence an 'elimination' rule [Gentzen] |
| 10067 | Gentzen proved the consistency of arithmetic from assumptions beyond arithmetic [Gentzen, by Musgrave] |
| 16066 | Additional or removal of any part changes a thing, so people are never the same person [Epicharmus] |
| 436 | A dog seems handsome to another a dog, and even a pig to another pig [Epicharmus] |
| 9196 | The pleasure of existing is the only genuine pleasure [Hadot] |
| 442 | Pleasures are like pirates - if you are caught they drown you in a sea of pleasures [Epicharmus] |
| 440 | Hands wash hands; give that you may get [Epicharmus] |
| 441 | Against a villain, villainy is not a useless weapon [Epicharmus] |
| 439 | God knows everything, and nothing is impossible for him [Epicharmus] |
| 443 | Human logos is an aspect of divine logos, and is sufficient for successful living [Epicharmus] |