| Link | Quote | Stars | Tags | Author |
| 3b8a5f2 | The moving power of mathematical invention is not reasoning, but imagination. | Augustus De Morgan | ||
| 3a1cbed | I did not hear what you said, but I absolutely disagree with you. | Augustus De Morgan | ||
| e1f73e3 | The lowest steps of the ladder are as useful as the highest. | Augustus De Morgan | ||
| 0ab094a | A large quantity of examples is indispensable. | Augustus De Morgan |