5 ideas
21710 | We know a universal in 'yellow differs from blue' or 'yellow resembles blue less than green does' [Russell] |
8854 | My 'acquaintance' with sense-data is nothing like my knowing New York [Williams,M on Russell] |
13165 | Geometrical proofs do not show causes, as when we prove a triangle contains two right angles [Proclus] |
9569 | The origin of geometry started in sensation, then moved to calculation, and then to reason [Proclus] |
9425 | Lewis later proposed the axioms at the intersection of the best theories (which may be few) [Mumford on Lewis] |