You can never learn less, you can only learn more.
The real solution lies in a world in which charity will have become unnecessary.
Necessity is the mother of invention.
The most savage controversies are those about matters as to which there is no good evidence either way.
Just because I don't care doesn't mean I don't understand.
Don't learn to do, but learn in doing.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
Courage, conviction and confidence.
I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.
What is now proved was once only imagined.
Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.
A little knowledge that acts is worth infinitely more than much knowledge that is idle.
Learning never exhausts the mind.
Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.
Those who fail to learn the lessons of history are doomed to repeat them.
The more I read, the more I acquire, the more certain I am that I know nothing.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
Investigate, educate and organize.