3 ideas
10190 | From the axiomatic point of view, mathematics is a storehouse of abstract structures [Bourbaki] |
20653 | Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson] |
20344 | Music is not an expressive art, because it expresses no familiar emotions [Hanslick, by Wollheim] |