记住，声誉和正直是你最宝贵的资产——而且可能一瞬间就丧失。

Happiness is not the absence of problems but the ability to deal with them.

Loneliness is the poverty of self; solitude is the richness of self.

I don’t take shortcuts.

可能近似正确（PAC）学习的概念在计算学习理论中具有基础性意义。