Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Dare to think for yourself.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
One test of the correctness of educational procedure is the happiness of the child.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
If I have seen further it is by standing on the shoulders of Giants.
I am a part of everything that I have read.
I cannot teach anybody anything. I can only make them think
Don't learn to do, but learn in doing.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
The only good is knowledge and the only evil is ignorance.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Education is the kindling of a flame, not the filling of a vessel.
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.
Study without desire spoils the memory, and it retains nothing that it takes in.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
Science is what we have learned about how to keep from fooling ourselves.
Men are born ignorant, not stupid. They are made stupid by education.
The real solution lies in a world in which charity will have become unnecessary.