One who gains strength by overcoming obstacles possesses the only strength which can overcome adversity.
If you are neutral in situations of injustice, you have chosen the side of the oppressor.
Gravity is only the bark of wisdom's tree; but it preserves it
In the practice of tolerance, one's enemy is the best teacher.
If a man could have half of his wishes, he would double his troubles.
There is an art, or rather a knack to flying. The knack lies in learning how to throw yourself at the ground and miss.
Think no vice so small that you may commit it, and no virtue so small that you may over look it.
There are no limitations to the mind except those we acknowledge.
When prosperity comes, do not use all of it.
If you buy what you do not need, you will need what you cannot buy.
Not everything that can be counted counts, and not everything that counts can be counted.
He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.
Wisdom... comes not from age, but from education and learning.
Nothing is softer or more flexible than water, yet nothing can resist it.
Men build too many walls and not enough bridges.
Rational discussion is useful only when there is a significant base of shared assumptions.
It is not enough to have a good mind; the main thing is to use it well.
If I speak of myself in different ways, that is because I look at myself in different ways.
A wise man can learn more from a foolish question than a fool can learn from a wise answer.
If we can really understand the problem, the answer will come out of it, because the answer is not separate from the problem.
There is always time to add a word, never to withdraw one.