7 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 13472 | Hilbert aimed to eliminate number from geometry [Hilbert, by Hart,WD] |
| 9546 | Euclid axioms concerns possibilities of construction, but Hilbert's assert the existence of objects [Hilbert, by Chihara] |
| 18742 | Hilbert's formalisation revealed implicit congruence axioms in Euclid [Hilbert, by Horsten/Pettigrew] |
| 18217 | Hilbert's geometry is interesting because it captures Euclid without using real numbers [Hilbert, by Field,H] |
| 22307 | Propositions don't name facts, because two opposed propositions can match one fact [Russell] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |