There are three methods to gaining wisdom. The first is reflection, which is the highest. The second is limitation, which is the easiest. The third is experience, which is the bitterest.
Confucius

DOS is ugly and interferes with users' experience.
Bill Gates

Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure, or nothing.
Helen Keller

Character cannot be developed in ease and quiet. Only through experience of trial and suffering can the soul be strengthened, ambition inspired, and success achieved.
Helen Keller

The marvelous richness of human experience would lose something of rewarding joy if there were no limitations to overcome. The hilltop hour would not be half so wonderful if there were no dark valleys to traverse.
Helen Keller

Many people know so little about what is beyond their short range of experience. They look within themselves - and find nothing! Therefore they conclude that there is nothing outside themselves either.
Helen Keller

Let us with caution indulge the supposition that morality can be maintained without religion. Reason and experience both forbid us to expect that national morality can prevail in exclusion of religious principle.
George Washington

Experience teaches us that it is much easier to prevent an enemy from posting themselves than it is to dislodge them after they have got possession.
George Washington

We should not look back unless it is to derive useful lessons from past errors, and for the purpose of profiting by dearly bought experience.
George Washington

There can be no greater error than to expect, or calculate, upon real favors from nation to nation. It is an illusion which experience must cure, which a just pride ought to discard.
George Washington

Good judgment comes from experience, and a lot of that comes from bad judgment.
Will Rogers

Sleep - the most beautiful experience in life - except drink.
W. C. Fields

I had rather have a fool to make me merry than experience to make me sad and to travel for it too!
William Shakespeare

I think everyone should experience defeat at least once during their career. You learn a lot from it.
Lou Holtz

Never, never and never again shall it be that this beautiful land will again experience the oppression of one by another.
Nelson Mandela

Wealth is the ability to fully experience life.
Henry David Thoreau

Like success, failure is many things to many people. With Positive Mental Attitude, failure is a learning experience, a rung on the ladder, a plateau at which to get your thoughts in order and prepare to try again.
W. Clement Stone

You learn from a conglomeration of the incredible past - whatever experience gotten in any way whatsoever.
Bob Dylan

I don't have to have faith, I have experience.
Joseph Campbell

I don't believe people are looking for the meaning of life as much as they are looking for the experience of being alive.
Joseph Campbell