If the facts don't fit the theory, change the facts.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.

A child miseducated is a child lost.

A little knowledge is a dangerous thing. So is a lot.

When you know better you do better.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

Better know nothing than half-know many things.

Evil being the root of mystery, pain is the root of knowledge.

Books are for people who wish they were somewhere else.

The direction in which education starts a man will determine his future in life

The task of a writer is not to solve the problem but to state the problem correctly.

My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.

Education is the kindling of a flame, not the filling of a vessel.

Dare to think for yourself.

The only true wisdom is in knowing you know nothing.

I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

Know what you are talking about.

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 delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

As we acquire more knowledge, things do not become more comprehensible but more mysterious.