4 ideas
1403 | A rational donkey would starve to death between two totally identical piles of hay [Buridan, by PG] |
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.] |