4 ideas
14799 | Metaphysics rests on observations, but ones so common we hardly notice them [Peirce] |
18256 | Quantity is inconceivable without the idea of addition [Frege] |
9831 | Geometry appeals to intuition as the source of its axioms [Frege] |
5960 | When the soul is intelligent and harmonious, it is part of god and derives from god [Plutarch] |