As we acquire more knowledge, things do not become more comprehensible but more mysterious.
A cynic is a man who knows the price of everything, and the value of nothing.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
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.
One test of the correctness of educational procedure is the happiness of the child.
I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.
All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.
The most important part of teaching is to teach what it is to know.
I am a part of everything that I have read.
I decided to teach because I think that any person who studies philosophy has to be involved actively.
Science is a way of thinking much more than it is a body of knowledge.
We could never learn to be brave and patient, if there were only joy in the world
Seek knowledge from the cradle to the grave.
The knowledge of all things is possible
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
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.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
No man's knowledge here can go beyond his experience.
Necessity is the mother of invention.
Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.
Books are as useful to a stupid person as a mirror is useful to a blind person.