Those who can not change their minds can not change anything.

Men build too many walls and not enough bridges.

Real knowledge is to know the extent of one's ignorance.

To be one, to be united is a great thing. But to respect the right to be different is maybe even greater.

Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.

Anywhere you go in the world is what you make of it, not what you read in books.

Whatever the mind of man creates, should be controlled by man's character

Let there be spaces in your togetherness.

Our society is run by insane people for insane objectives.

Yes, I guess you could say I am a loner, but I feel more lonely in a crowed room with boring people than I feel on my own.

One who loses wealth loses much. One who loses a friend loses more. But one who loses courage loses all.

The use of travelling is to regulate imagination by reality, and instead of thinking how things may be, to see them as they are.

Science has not yet taught us if madness is or is not the sublimity of the intelligence.

If we know exactly where we're going, exactly how to get there, and exactly what we'll see along the way, we won't learn anything.

We learn from our gardens to deal with the most urgent question of the time: How much is enough?

One never notices what has been done; one can only see what remains to be done.

What can't be cured must be endured.

A crust eaten in peace is better than a banquet partaken in anxiety.

Be frank and explicit. That is the right line to take when you wish to conceal your own mind and to confuse the minds of others.

Think no vice so small that you may commit it, and no virtue so small that you may over look it.

It is hard to fight desire; but to control it is the sign of a reasonable man.