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.

A witty saying proves nothing.

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.

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

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

An investment in knowledge pays the best interest.

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.

What is now proved was once only imagined.

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

One test of the correctness of educational procedure is the happiness of the child.

It is possible to fly without motors, but not without knowledge and skill.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

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

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

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

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.

I cannot live without books.

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.

Books are for people who wish they were somewhere else.

When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.

In order to stave off covetouness, greed, and spite, citizens world over must be educated.