所有人都是我们的导师，恶人通过他们的恶行说'不要靠近我'。善人总是善良的，所以所有人都像导师一样对我们。

The best players have the shortest memories.

My blindness is not a tragedy, but an opportunity to see the world in a different way.

A proof is a device for convincing someone else that a mathematical statement is true.

有时你必须先投降才能获胜。