Imagination is more important than knowledge.
I am indebted to my father for living, but to my teacher for living well.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
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.
The schools ain't what they used to be and never was.
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 awful, insulting, and depressing than banality.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion
The task of a writer is not to solve the problem but to state the problem correctly.
Seek knowledge from the cradle to the grave.
Any sufficiently advanced technology is indistinguishable from magic.
Civilization is a race between disaster and education.
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.
The reading of all good books is like conversation with the finest men of past centuries.
An investment in knowledge pays the best interest.
You can never learn less, you can only learn more.