Science is a way of thinking much more than it is a body of knowledge.

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

Opinion is the medium between knowledge and ignorance.

A thought is an idea in transit.

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

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

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.

An investment in knowledge pays the best interest.

To every action there is always an equal and opposite or contrary, reaction

The real solution lies in a world in which charity will have become unnecessary.

Education is an ornament for the prosperous, a refuge for the unfortunate.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

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

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

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

Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

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

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