Love is the law, love under will.
Sit still. Stop thinking. Shut up. Get out!
The cause of human sectarianism is not lack of sympathy in thought, but in speech; and this it is our not unambitious design to remedy.
The people who have really made history are the martyrs.
Intolerance is evidence of impotence.
The first discipline of education must therefore be to refuse resolutely to feed the mind with canned chatter.
Falsehood is invariably the child of fear in one form or another.
The customer is usually wrong; but statistics indicate that it doesn't pay to tell him so.
We know one thing only. Absolute existence, absolute motion, absolute direction, absolute simultaneity, absolute truth, all such ideas: they have not, and never can have, any real meaning.
The discovery of radioactivity created a momentary chaos in chemistry and physics; but it soon led to a fuller interpretation of the old ideas.