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Childhood is a foreign country we've all visited but can't quite remember.

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

最好的想法往往在你最意想不到的時候出現。

Tradition and modernity are not opposites; they can coexist and enrich each other.

喜歡責備別人的人難以維持與別人的交情，經常原諒自己過失的人永遠不可能改正錯誤。驕傲自滿的人必定失敗，自我夸耀的人愚蠢可笑，自我戕害的人必然害己害人。多說話而得到好處，不如沉默而不受傷害。

We are all broken, that's how the light gets in.