The future you shall know when it has come; before then forget it.
Aeschylus
Life can only be understood backwards; but it must be lived forwards.
Soren Kierkegaard
Wisdom is found only in truth.
Johann Wolfgang von Goethe
Don't think there are no crocodiles because the water is calm.
Malayan proverbs
Listen to your heart. It knows all things, because it came from the Soul of the World, and it will one day return there.
Paulo Coelho
A tree is known by its fruit, a man by his deeds.
Saint Basil
Wisdom doesn't automatically come with old age. Nothing does - except wrinkles. It's true, some wines improve with age. But only if the grapes were good in the first place.
Abigail Van Buren
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
All human wisdom is summed up in two words; wait and hope.
Alexandre Dumas
Ignorant men raise questions that wise men answered a thousand years ago.
Wise men speak because they have something to say; Fools because they have to say something.
Plato
Pride goeth before destruction, and an haughty spirit before a fall.
Bible
Anger is a wind which blows out the lamp of the mind.
Robert G. Ingersoll
No wise man ever thought that a traitor should be trusted.
Cicero
Wisdom is oftentimes nearer when we stoop than when we soar.
William Wordsworth
It is better to be unhappy and know the worst, than to be happy in a fool's paradise.
Fyodor Dostoyevsky
A loving heart is the truest wisdom.
Charles Dickens
Science gives us knowledge, but only philosophy can give us wisdom.
Will Durant
People who fight fire with fire usually end up with ashes.
The doorstep to the temple of wisdom is a knowledge of our own ignorance.
Benjamin Franklin
