Opportunity is missed by most people because it is dressed in overalls and looks like work.
Genius is one per cent inspiration, ninety-nine per cent perspiration.
Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions.
Imagination is more important than knowledge...
It is the supreme art of the teacher to awaken joy in creative expression and knowledge.
There is no expedient to which a man will not go to avoid the labor of thinking.
We don't know a millionth of one percent about anything.
Tell the innocent visitor from another world that two people were killed at Serajevo, and that the best that Europe could do about it was to kill eleven million more.
I wrote somewhere once that the third-rate mind was only happy when it was thinking with the majority, the second-rate mind was only happy when it was thinking with the minority, and the first-rate mind was only happy when it was thinking.