In this world, what we must guard against most is perfection. Look at the moon in the sky—once full, it begins to wane; the fruit on the tree—once ripe, it must fall. Only by leaving a little room for imperfection can things endure.
世界上的事情，最忌讳的就是个十全十美，你看那天上的月亮，一旦圆满了，马上就要亏厌；树上的果子，一旦熟透了，马上就要坠落。凡事总要稍留欠缺，才能持恒。
In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.
Financial crises are not acts of God. They are caused by human actions and can be prevented by human actions.
最卑微的个体也会对他人产生一定的影响，无论是好是坏。
Acquiring things will rarely bring you deep satisfaction. But acquiring experiences will.
The universe is not only queerer than we suppose, but queerer than we can suppose.