Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.

My weapon is literature

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

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

We could never learn to be brave and patient, if there were only joy in the world

Human behavior flows from three main sources: desire, emotion, and knowledge

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

Science is what we have learned about how to keep from fooling ourselves.

Science is not only a disciple of reason but, also, one of romance and passion.

Knowledge becomes evil if the aim be not virtuous.

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

The fullness of knowledge only comes through the awareness of ignorance.

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

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

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.

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

There is no authority who decides what is a good idea.

Imagination is more important than knowledge.

All stable processes we shall predict. All unstable processes we shall control.

The whole of science is nothing more than a refinement of everyday thinking.

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