The secret of joy in work is contained in one word – excellence. To know how to do something well is to enjoy it.

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

无论生产规模如何，质量都不应妥协。

"I write to find myself, but I always end up losing myself."

The mathematics of spin glasses revealed a hidden structure that applies to many seemingly unrelated problems.