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

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

With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.

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

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

It took us three years to build the NeXT computer. If we'd given customers what they said they wanted, we'd have built a computer they'd have been happy with a year after we spoke to them - not something they'd want now.

An investment in knowledge pays the best interest.

I am a part of everything that I have read.

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

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

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

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

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

Opinion is the medium between knowledge and ignorance.

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

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

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

Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.

Industrialize or perish.

Books are for people who wish they were somewhere else.

The highest result of education is tolerance.