8 ideas
| 7085 | The main problem of philosophy is what can and cannot be thought and expressed [Wittgenstein, by Grayling] |
| 23463 | Atomic facts correspond to true elementary propositions [Wittgenstein] |
| 16641 | Whiteness does not exist, but by it something can exist-as-white [Aquinas] |
| 22170 | Senses grasp external properties, but the understanding grasps the essential natures of things [Aquinas] |
| 22169 | Initial universal truths are present within us as potential, to be drawn out by reason [Aquinas] |
| 22168 | Minds take in a likeness of things, which activates an awaiting potential [Aquinas] |
| 23490 | A thought is mental constituents that relate to reality as words do [Wittgenstein] |
| 23053 | The great interest of the human race is cordial unity and unlimited mutual aid [Owen] |