唯一不变的是变化本身。

At seventy, I’m just getting started. Watch me.

数学和计算机科学的交叉点是一些最激动人心的发现产生的地方。

The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

每个地方都有它的秘密，如果你知道如何去看。