We are all born ignorant, but one must work hard to remain stupid.
Benjamin Franklin

The true sign of intelligence is not knowledge but imagination.
Albert Einstein

To acquire knowledge, one must study; but to acquire wisdom, one must observe.
Marilyn vos Savant

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom.
Charles Spurgeon

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
John Locke

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
Terry Pratchett

Those people who develop the ability to continuously acquire new and better forms of knowledge that they can apply to their work and to their lives will be the movers and shakers in our society for the indefinite future.
Brian Tracy

The possession of knowledge does not kill the sense of wonder and mystery. There is always more mystery.
Anais Nin

Knowledge of what is does not open the door directly to what should be.
Albert Einstein

There is much pleasure to be gained from useless knowledge.
Bertrand Russell

No man can reveal to you nothing but that which already lies half-asleep in the dawning of your knowledge.
Khalil Gibran