Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

He can say to himself, "Somewhere, my flower is there…" But if the sheep eats the flower, in one moment all his stars will be darkened… And you think that is not important!

我不是来取悦所有人的。

未来属于那些能够跨越界限合作的人。

一切皆有可能。不要给自己设限。

最伟大的旅程是那些改变我们的旅程。

气候变化是对我们农业智慧的最大考验。

根据自然法，人生而自由。