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

Civilization is a race between disaster and education.

Men are born ignorant, not stupid. They are made stupid by education.

Free the child's potential, and you will transform him into the world.

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

It is better to know how to learn than to know.

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

Real learning comes about when the competitive spirit has ceased.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

Necessity is the mother of invention.

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

If the facts don't fit the theory, change the facts.

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

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

An investment in knowledge pays the best interest.

Common sense is the collection of prejudices acquired by age eighteen.

Dare to think for yourself.

Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

The direction in which education starts a man will determine his future in life

You can never learn less, you can only learn more.

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.