The profoundly wise do not declaim against superficial knowledge in others, as much as the profoundly ignorant. (Quote by - Colton)

A man is never astonished that he doesn't know what another does, but he is surprised at the gross ignorance of the other in not knowing what he does. (Quote by - Haliburton)

The art of being wise is the art of knowing what to overlook. (Quote by - William James)

The ancient sage who concocted the maxim, Know Thyself might have added, Don't Tell Anyone! (Quote by - H. F. Henrichs)

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young. (Quote by - Henry Ford)

I do not believe...I know. (Quote by - Carl Jung)

You know more than you think you do. (Quote by - Benjamin Spock)

For love is ever the beginning of Knowledge, as fire is of light. (Quote by - Thomas Carlyle)

Knowledge bloweth up, but charity buildeth up. (Quote by - Francis Bacon)

He that hath knowledge spareth his words: and a man of understanding is of an excellent spirit. (Quote by - Bible)

He knew whats'ever 's to be known, But much more than he knew would own. (Quote by - Samuel Butler)

I know too much to be conservative or liberal. (Quote by - Bible)

A President's hardest task is not to do what is right, but to know what is right. (Quote by - Lyndon Baines Johnson)

To be absolutely certain about something, one must know everything or nothing about it. (Quote by - Olin Miller)

Wisdom is meaningless until our own experience has given it meaning ... and there is wisdom in the selection of wisdom. (Quote by - Bergen Evans)

Wisdom and knowledge decrease in inverse proportion to age. (Quote by - William J. Lynott)

For knowledge, too, is itself a power. (Quote by - Francis Bacon)

I may tell all my bones: they look and stare upon me. (Quote by - Bible)

We live on an island surrounded by a sea of ignorance. As our island of knowledge grows, so does the shore of our ignorance. (Quote by - John A. Wheeler)

He who knows only his own side of the case knows little of that. (Quote by - John Stuart Mill)

Knowledge is not happiness, and science But an exchange of ignorance for that Which is another kind of ignorance. (Quote by - George Gordon Noel Byron)

The greatest of fools is he who imposes on himself, and in greatest concern thinks certainly he knows that which he has least studied, and of which he is profoundly ignorant. (Quote by - Shaftesbury)

Real knowledge is to know the extent of one's ignorance. (Quote by - Confucius)

If my mind can conceive it, and my heart can believe it, I know I can achieve it. (Quote by - Rev. Jesse Jackson)

Men are four: He who knows not and knows not he knows not, he is a fool--shun him; He who knows not and knows he knows not, he is simple--teach him; He who knows and knows not he knows, he is asleep--wake him; He who knows and knows he knows, hi is wise--follow him! (Quote by - Lady Burton)