有人问作家张晓风：我们怎样才能够爱一个人而不受伤？张晓风如此作答。
The world is not a puzzle to be solved, but a mystery to be lived.
世界不必担心我们政府中的军事野心。
To live is to choose, and every choice has its consequences.
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.
If the job has been correctly done when a common stock is purchased, the time to sell it is—almost never.