4 ideas
10053 | Geometrical axioms imply the propositions, but the former may not be true [Russell] |
10052 | Geometry is united by the intuitive axioms of projective geometry [Russell, by Musgrave] |
16661 | There are two sorts of category - referring to things, and to circumstances of things [Boethius] |
7903 | The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna] |