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] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
17593 | Always be ready to give reasons for your beliefs [Peter] |