Napoleon Hill

An educated person is not necessarily one who has an abundance of general or specialized knowledge. Any person is educated who knows where to get knowledge when it is needed and how to organize that knowledge into definite plans of action.

Aristotle

Teaching is the highest form of understanding.

Daniel J. Boorstin

The greatest obstacle to discovery is not ignorance–it is the illusion of knowledge.

Bertrand Russell

Everything is vague to a degree you do not realize till you have tried to make it precise.

Will Rogers

It ain’t what you don’t know that hurts you. It’s what you know that ain’t so.

Bertrand Russell

In all affairs it’s a healthy thing now and then to hang a question mark on the things you have long taken for granted.

Abraham Lincoln

Nearly all men can stand adversity, but if you want to test a man’s character, give him power.

John Tukey

It is better to have an approximate answer to the right question than an exact answer to the wrong question.

Enrico Bombieri

When things get too complicated, it sometimes makes sense to stop and wonder: Have I asked the right question?

Paul B. Sears

Wisdom consists of the anticipation of consequences.

David Allen

There are only two problems in life: you know what you want and you don’t know how to get it; or you don’t know what you want.

Bernard Baruch

The ability to express an idea is well nigh as important as the idea itself.

Robert Frost

Half the world is composed of people who have something to say and can’t, and the other half who have nothing to say and keep saying it.

G.K. Chesterton

Man can always be blind to a thing as long as it is big enough.

Seneca

For many, the acquisition of wealth does not end their troubles, it only changes them.

Jim Rohn

Finding is reserved for the searchers. We don’t find what we need; we find what we search for. Needing is not a prerequisite to getting value. You can’t be a needer, you have to be a searcher.

Sigmund Freud

It is impossible to escape the impression that people commonly use false standards of measurement—that they seek power, success and wealth for themselves and admire them in others, and that they underestimate what is of true value in life.

Neem Karoli Baba

There are people who get exactly what they want. You think they’re the lucky ones, but they’re not. The lucky ones are those who do what they are meant to do.

James Gleick

People today work more than they really need to—for the wrong reason. “It’s their own fault, for treating time as a mere status symbol. And a negative status symbol at that: the less time, the more prestige. The more time you have on your hands, the less important you must be.”

Ron Crossland

When your intent is to move people to action, to help them understand and deepen their appreciation and gain more insight and more passion about their work, you have got to have […] facts, emotion, and symbols.