Knowledge is power only if man knows what facts not to bother with.
I sometimes suspect that half our difficulties are imaginary and that if we kept quiet about them they would disappear.
Every man of genius is considerably helped by being dead.
Most of us can remember a time when a birthday - especially if it was one's own - brightened the world as if a second sun has risen.
When the last Puritan has disappeared from the earth, the man of science will take his place as a killjoy, and we shall be given the same old advice but for different reasons.
[History is] the story of the magnificent rear-guard action fought during several thousand years by dogma against curiosity.
The telephone is the greatest nuisance among conveniences, the greatest convenience among nuisances.
Any of us can achieve virtue, if by virtue we merely mean the avoidance of the vices that do not attract us.
Cut quarrels out of literature, and you will have very little history or drama or fiction or epic poetry left.
One of the greatest joys known to man is to take a flight into ignorance in search of knowledge.
Most remarks that are worth making are commonplace remarks. The things that makes them worth saying is that we really mean them.
Most of us believe in trying to make other people happy only if they can be happy in ways which we approve.
Friendship will not stand the strain of very much good advice for very long.
There are some people who want to throw their arms round you simply because it is Christmas; there are other people who want to strangle you simply because it is Christmas.
Friendship is not going to stand the pressure of greatly great guidance for quite extensive.
Follow AzQuotes on Facebook, Twitter and Google+. Every day we present the best quotes! Improve yourself, find your inspiration, share with friends