11 ideas
| 12732 | Some necessary truths are brute, and others derive from final causes [Leibniz] |
| 6417 | In 1921 Russell abandoned sense-data, and the gap between sensation and object [Russell, by Grayling] |
| 6474 | Seeing is not in itself knowledge, but is separate from what is seen, such as a patch of colour [Russell] |
| 6476 | We cannot assume that the subject actually exists, so we cannot distinguish sensations from sense-data [Russell] |
| 2792 | It is possible the world came into existence five minutes ago, complete with false memories [Russell] |
| 22326 | Knowledge needs more than a sensitive response; the response must also be appropriate [Russell] |
| 19438 | Our large perceptions and appetites are made up tiny unconscious fragments [Leibniz] |
| 6475 | In perception, the self is just a logical fiction demanded by grammar [Russell] |
| 19415 | Passions reside in confused perceptions [Leibniz] |
| 468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
| 19439 | God produces possibilities, and thus ideas [Leibniz] |