That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Courage, conviction and confidence.
Education is an ornament for the prosperous, a refuge for the unfortunate.
Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.
The fullness of knowledge only comes through the awareness of ignorance.
Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.
I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
Common sense is the collection of prejudices acquired by age eighteen.
The reading of all good books is like conversation with the finest men of past centuries.
Science is what we have learned about how to keep from fooling ourselves.
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.
There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
The whole of science is nothing more than a refinement of everyday thinking.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Educate the children and it won't be necessary to punish the men.
The more I read, the more I acquire, the more certain I am that I know nothing.
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.