一个好的数学问题的定义是它产生的数学，而不是问题本身。

饥饿天使是一个隐喻，饥饿如影随形地跟踪着你。

Strive for greatness.

O amor é a única coisa que cresce quando se reparte.

A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.

Happiness is not something you postpone for the future; it is something you design for the present.

A picture must be grasped at once, as a whole, like a piece of music.

直到此刻，我从未真正了解过自己。