Happiness is not something ready-made. It comes from your own actions.
The mind is not a passive mirror of the world but an active participant in constructing reality.
生活得最有意义的人,并不就是年岁活得最大的人,而是生活最有感受的人。
求知若饥,虚心若愚。
The Langlands program is an invitation to explore the unknown territories of mathematics.