No man is useless in this world who lightens the burden of someone else.

The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.

计算机体系结构的目标是使常见情况快速，罕见情况正确。

书是一次心灵的旅程。

请求原谅比获得许可更容易。

唯一比摇滚明星更糟糕的是有良知的摇滚明星。

自满是医学进步的敌人。