你不必被过去做过或没做过的事情定义。

The best strategy is simple but not easy.

The most important property of a program is whether it accomplishes the intention of its user.

"A good story is like a mirror that reflects the hidden corners of our souls."

The past is not for living in; it is a well of conclusions from which we draw in order to act.

数学是科学大厦的基础。