7 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 8920 | Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz] |
| 18969 | How do you distinguish three beliefs from four beliefs or two beliefs? [Quine] |
| 18967 | A 'proposition' is said to be the timeless cognitive part of the meaning of a sentence [Quine] |
| 18968 | The problem with propositions is their individuation. When do two sentences express one proposition? [Quine] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |
| 18970 | The concept of a 'point' makes no sense without the idea of absolute position [Quine] |