Life can only be understood backwards; but it must be lived forwards.
I'm a great believer in low-budget films.
Dream big, start small, act now.
采矿业有能力改变社区,但前提是我们必须负责任地去做。
真正的教育是学会思考。
If you think about something at three o'clock in the morning and then again at noon the next day, you get different answers...
做数学就是参与发现与猜想、直觉与灵感的过程。
The past is never dead. It's not even past.