我们知识的边界就是我们好奇心的前沿。

True leadership is measured by how you lift others up, not how high you climb.

The greatest sweetener of human life is Friendship. To raise this to the highest pitch of enjoyment, is a secret which but few discover.

Reason obeys itself; and ignorance submits to whatever is dictated to it.

重要的不是你看到了什么，而是你观察到了什么。