A little knowledge that acts is worth infinitely more than much knowledge that is idle.
If one cannot enjoy reading a book over and over again, there is no use in reading it at all.
What we know is a drop, what we don't know is an ocean.
Opinion is the medium between knowledge and ignorance.
Learning never exhausts the mind.
The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.
There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Science is what we have learned about how to keep from fooling ourselves.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
Courage, conviction and confidence.
If you can't explain it simply, you don't understand it well enough.
A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.
Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.
What sculpture is to a block of marble, education is to a human soul.
Never help a child with a task at which he feels he can succeed.
The real solution lies in a world in which charity will have become unnecessary.
No power and no treasure can outweigh the extension of our knowledge.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
I like poems you can tack all over with a hammer and there are no hollow places.
Education is the kindling of a flame, not the filling of a vessel.