The reading of all good books is like conversation with the finest men of past centuries.

You can never be overdressed or overeducated.

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

Investigate, educate and organize.

The progressive development of man is vitally dependent on invention.

Never help a child with a task at which he feels he can succeed.

Science is not only a disciple of reason but, also, one of romance and passion.

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

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

It is what you read when you don't have to that determines what you will be when you can't help it.

I cannot teach anybody anything. I can only make them think

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.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

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

Reading is to the mind what exercise is to the body.

Human behavior flows from three main sources: desire, emotion, and knowledge

Education is a system of imposed ignorance.

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

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.

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

Study without desire spoils the memory, and it retains nothing that it takes in.