Knowledge is only potential power.
Napoleon Hill
All men by nature desire knowledge.
Aristotle
Knowledge is a treasure, but practice is the key to it.
Thomas Fuller
There is one thing one has to have: either a soul that is cheerful by nature, or a soul made cheerful by work, love, art, and knowledge.
Friedrich Nietzsche
Knowledge is of no value unless you put it into practice.
Anton Chekhov
The only source of knowledge is experience
Albert Einstein
There comes a time when the mind takes a higher plane of knowledge but can never prove how it got there.
Albert Einstein
To know that we know what we know, and that we do not know what we do not know, that is true knowledge.
Henry David Thoreau
Beware of false knowledge; it is more dangerous than ignorance.
George Bernard Shaw
Real knowledge is to know the extent of one's ignorance.
Confucius
Knowledge is a process of piling up facts; wisdom lies in their simplification.
Martin H. Fischer
All wish to possess knowledge, but few, comparatively speaking, are willing to pay the price.
Juvenal
Those who have knowledge, don't predict. Those who predict, don't have knowledge.
Lao Tzu
Perplexity is the beginning of knowledge.
Kahlil Gibran
Knowledge is inherent in man; no knowledge comes from outside; it is all inside. We say Newton discovered gravitation. Was it sitting anywhere waiting for him? It was in his own mind; the time came and he found it out. All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind. The external world is simply the suggestion, the occasion, which sets you to study your own mind.
Swami Vivekananda