If there were no bad people, there would be no good lawyers.

To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.

The progressive development of man is vitally dependent on invention.

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

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

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

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

A little knowledge is a dangerous thing. So is a lot.

Imagination is more important than knowledge.

Real learning comes about when the competitive spirit has ceased.

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

In mathematics you don't understand things. You just get used to them.

The real solution lies in a world in which charity will have become unnecessary.

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.

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

No man's knowledge here can go beyond his experience.

Industrialize or perish.

Opinion is the medium between knowledge and ignorance.

The only true wisdom is in knowing you know nothing.

Liberty without Learning is always in peril and Learning without Liberty is always in vain.

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