Courage is being scared to death... and saddling up anyway.
Self-esteem comes from being able to define the world in your own terms and refusing to abide by the judgments of others.
I sound my barbaric yawp over the rooftops of the world.
In just six weeks from the time the design was started, we had the motor on the block testing its power.
The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil and no good, nothing but blind pitiless indifference.
A myth is an image in terms of which we try to make sense of the world.
There is no terror in the bang, only in the anticipation of it.
Before I speak, I have something important to say.
Three may keep a secret, if two of them are dead.
Jests that give pains are not jests.
Religion and art spring from the same root and are close kin. Economics and art are strangers.
I love Madrid. I am happy to be here. I have been here three years and hope to be here longer. But I am proud of where I come from and never forget the people I grew up with.
All animals are equal, but some animals are more equal than others.
The paranoid is never entirely mistaken.
Abuse of words has been the great instrument of sophistry and chicanery, of party, faction, and division of society.
In order to be irreplaceable, one must always be different.
One of the great penalties those of us who live our lives in full view of the public must pay is the loss of that most cherished birthright of man's, privacy.
I am not ashamed to confess that I am ignorant of what I do not know.
Courage is not simply one of the virtues, but the form of every virtue at the testing point.
A mediocre idea that generates enthusiasm will go further than a great idea that inspires no one.
Will and intellect are one and the same thing.