4 ideas
16886 | The truth of an axiom must be independently recognisable [Frege] |
15034 | Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry] |
3583 | External objects are permanent possibilities of sensation [Mill] |
3537 | I judge others' feeling by analogy with my body and behaviour [Mill] |