8 ideas
21239 | Philosophers are marked by a joint love of evidence and ambiguity [Merleau-Ponty] |
17744 | De Morgan started the study of relations and their properties [De Morgan, by Walicki] |
13501 | De Morgan found inferences involving relations, which eluded Aristotle's syllogistic [De Morgan, by Hart,WD] |
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
21862 | Consciousness is based on 'I can', not on 'I think' [Merleau-Ponty] |
20750 | The mind does not unite perceptions, because they flow into one another [Merleau-Ponty] |
20921 | How can we state relativism of sweet and sour, if they have no determinate nature? [Theophrastus] |
5990 | Theophrastus doubted whether nature could be explained teleologically [Theophrastus, by Gottschalk] |