An investment in knowledge pays the best interest.

Books are as useful to a stupid person as a mirror is useful to a blind person.

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.

Make it a rule never to give a child a book you would not read yourself.

A cynic is a man who knows the price of everything, and the value of nothing.

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

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

No power and no treasure can outweigh the extension of our knowledge.

Real knowledge is to know the extent of one's ignorance.

Those who fail to learn the lessons of history are doomed to repeat them.

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.

My weapon is literature

The first principle is that you must not fool yourself and you are the easiest person to fool.

Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.

The most savage controversies are those about matters as to which there is no good evidence either way.

Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

The schools ain't what they used to be and never was.

Investigate, educate and organize.

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

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.