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

A thought is an idea in transit.

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

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.

If you can't explain it simply, you don't understand it well enough.

Education is a human right with immense power to transform. On its foundation rest the cornerstones of freedom, democracy and sustainable human development.

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

What is freedom of expression? Without the freedom to offend, it ceases to exist.

When you know better you do better.

Knowing is not enough; we must apply. Willing is not enough; we must do.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

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.

Better know nothing than half-know many things.

Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.

Learning never exhausts the mind.

I have no special talents. I am only passionately curious.

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

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

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

Industrialize or perish.

It is what you read when you don't have to that determines what you will be when you can't help it.