Knowledge becomes evil if the aim be not virtuous.

Better know nothing than half-know many things.

I do not know how to teach philosophy without becoming a disturber of the peace.

To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.

Show me a family of readers, and I will show you the people who move the world.

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

What we know is a drop, what we don't know is an ocean.

Books are for people who wish they were somewhere else.

Opinion is the medium between knowledge and ignorance.

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

I decided to teach because I think that any person who studies philosophy has to be involved actively.

An investment in knowledge pays the best interest.

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

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

The books that the world calls immoral are books that show the world its own shame.

Courage, conviction and confidence.

I like poems you can tack all over with a hammer and there are no hollow places.

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

The first idea the child must acquire is that of the difference between good and evil.

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