| Link | Quote | Stars | Tags | Author |
| 8bd814c | The world is full, at every scale, and every scale ignores the higher and lower ones. | Ivar Ekeland | ||
| d5a981e | The transition from integrable to non integrable systems is quiet interesting to observe. | Ivar Ekeland | ||
| 67e4c70 | The moment when the scientists became engineers was a historical turning point. | Ivar Ekeland |