In mathematics, the art of proposing a question must be held of higher value than solving it.

如果易用性是唯一的要求，那么每个人都会还在骑三轮车。

Success is not about perfection, but about continuous improvement and adaptation to change.

生存的唯一方法就是互相照顾。

I don’t count my sit-ups, I only start counting when it starts hurting.

The historian must be impartial, but not indifferent.