真正的领导者会创造更多的领导者，而不是更多的追随者。

"We are all in the gutter, but some of us are looking at the stars."

In our reasonings concerning matter of fact， there are all imaginable degrees of assurance， from the highest certainty to the lowest species of moral evidence.

I’ve always thought that the schoolboy who’s a bit of a troublemaker is the one who’s going to come out and do something really interesting.

人生苦短，何必在意别人的看法。

The proper study of psychology is not what the mind is, but what the mind does.