There is only one boss. The customer. And he can fire everybody in the company from the chairman on down, simply by spending his money somewhere else.
Insight is the sudden comprehension of the relations among the parts of a problem.
做数学的艺术在于找到那个包含所有普遍性萌芽的特殊案例。
保持耐心,耐心等待机会。
The more you destroy, the more you create.