4 ideas
6493 | We are not conscious of pure liquidity, but of the liquidity of water [Firth] |
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] |
20344 | Music is not an expressive art, because it expresses no familiar emotions [Hanslick, by Wollheim] |