They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

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

A witty saying proves nothing.

Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.

What is freedom of expression? Without the freedom to offend, it ceases to exist.

The highest activity a human being can attain is learning for understanding, because to understand is to be free.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

Education is a human right with immense power to transform. On its foundation rest the cornerstones of freedom, democracy and sustainable human development.

Don't worry that children never listen to you; worry that they are always watching you.

Knowing others is wisdom, knowing yourself is Enlightenment.

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

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

The secret of life is not enjoyment but education through experience.

I cannot live without books.

I have no special talents. I am only passionately curious.

If I have seen further it is by standing on the shoulders of Giants.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

The whole of science is nothing more than a refinement of everyday thinking.

Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.

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

I think that kids have a greater capacity for processing things than we give them credit for.