The highest result of education is tolerance.
I do not know how to teach philosophy without becoming a disturber of the peace.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.
Knowing others is wisdom, knowing yourself is Enlightenment.
Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.
If help and salvation are to come, they can only come from the children, for the children are the makers of men.
That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
Patience is a virtue, and I'm learning patience. It's a tough lesson.
Those who fail to learn the lessons of history are doomed to repeat them.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
It is possible to fly without motors, but not without knowledge and skill.
Imagination is more important than knowledge.
The progressive development of man is vitally dependent on invention.
Many much-learned men have no intelligence.
The direction in which education starts a man will determine his future in life
Science is what we have learned about how to keep from fooling ourselves.