I'm grateful for every challenge because it made me stronger.

出自唐代龙牙居遁禅师《偈颂并序·其四十三》，意思是我虽然以花木水果为食，以树木草皮为衣，但我的心境却像那高悬夜空的明月一样，清澈而宁静；我一生不妄求、不计较、不执着，人到无求品自高，人到无念便安闲。一生无念，并不是放弃追求，而是一种放下执着，放下无谓的忧虑，放下不切实际的幻想，心无旁骛的生活态度。人生有许多不可知的偶然，或许在放下的瞬间，就会有意想不到的新天地。

在朝堂上也可以当一名隐士，何必非要到深山老林中去呢？

我比我想象的更坚强。

你越深入数学，就越能意识到一切是如何相互关联的。

The only way to do great work is to love what you do.

let everyone else call your idea crazy, just keep going, don't stop, don't even think about stopping until you get there, and don't give much think of where "there" is.