The key to wisdom is this - constant and frequent questioning, for by doubting we are led to question and by questioning we arrive at the truth.
Peter Abelard
Wisdom and penetration are the fruit of experience, not the lessons of retirement and leisure. Great necessities call out great virtues.
Abigail Adams
In wisdom gathered over time I have found that every experience is a form of exploration.
Ansel Adams
Animals, in their generation, are wiser than the sons of men; but their wisdom is confined to a few particulars, and lies in a very narrow compass.
Joseph Addison
He who learns must suffer. And even in our sleep pain that cannot forget falls drop by drop upon the heart, and in our own despair, against our will... →
Aeschylus
Memory is the mother of all wisdom.
Wisdom comes alone through suffering.
Of prosperity mortals can never have enough.
It is good even for old men to learn wisdom.
Appearances are often deceiving.
Aesop