12 ideas
| 7401 | Heat and colour don't exist, so cannot mislead about the external world [Galileo, by Tuck] |
| 5454 | Tastes, odours and colours only reside in consciousness, and would disappear with creatures [Galileo] |
| 16560 | Galileo introduced geometrico-mechanical explanation, based on Archimedes [Galileo, by Machamer/Darden/Craver] |
| 8122 | True works of art transmit completely new feelings [Tolstoy] |
| 8121 | Art is when one man uses external signs to hand on his feelings to another man [Tolstoy] |
| 8124 | The highest feelings of mankind can only be transmitted by art [Tolstoy] |
| 8123 | The purpose of art is to help mankind to evolve better, more socially beneficial feelings [Tolstoy] |
| 468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
| 22710 | People estimate art according to their moral values [Tolstoy] |
| 8125 | The upper classes put beauty first, and thus freed themselves from morality [Tolstoy] |
| 8064 | We separate the concept of beauty from goodness, unlike the ancients [Tolstoy] |
| 3645 | To understand the universe mathematics is essential [Galileo] |