If we don't believe in freedom of expression for people we despise, we don't believe in it at all.
Doubt is the origin of wisdom
Every aquarium will eventually leak.
It is not the strength, but the duration, of great sentiments that makes great men.
It takes a great man to be a good listener.
But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.
Science has not yet taught us if madness is or is not the sublimity of the intelligence.
Challenges are gifts that force us to search for a new center of gravity. Don't fight them. Just find a new way to stand.
When you learn, teach, when you get, give.
I think, therefore I am.
The secret of life, though, is to fall seven times and to get up eight times.
I hear and I forget. I see and I remember. I do and I understand.
How often I found where I should be going only by setting out for somewhere else.
There is a wisdom of the head, and... there is a wisdom of the heart.
All differences in this world are of degree, and not of kind, because oneness is the secret of everything.
Desire is poverty. Desire is the greatest impurity of the mind. Desire is the motive force for action. Desire in the mind is the real impurity. Even a spark of desire is a very great evil.
No one can make you feel inferior without your consent.
Work is the price which is paid for reputation.
I know I am but mortal and so therewhilst prepare myself for death, whensoever it shall please God to send it.
Only idiots refuse to change their minds.
Rest satisfied with doing well, and leave others to talk of you as they please.