| Link | Quote | Stars | Tags | Author |
| 7f00ac4 | Parallel lines have a common end point at an infinite distance. | Girard Desargues | ||
| b854c5f | When no point of a line is at a finite distance, the line itself is at an infinite distance. | Girard Desargues | ||
| 775aeb9 | He who shall wish to disentangle this proposition will easily be able to compose a volume. | Girard Desargues |