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We can be knowledgeable with other men’s knowledge but we cannot be wise with other men’s wisdom.
Michel de Montaigne, French essayist (1533-1592)
Knowledge is proud that he has learned so much; Wisdom is humble that he knows no more.
William Cowper, British poet (1731-1800)
The older I grow the more I distrust the familiar doctrine that age brings wisdom.
H L Mencken, US journalist (1880-1956)
That which seems the height of absurdity in one generation often becomes the height of wisdom in the next.
John Stuart Mill, British philosopher, economist (1806-1873)
The believer is happy. The doubter is wise.
An optimist is a person who sees a green light everywhere, while a pessimist sees only the red stoplight. The truly wise person is ‘colour-blind’.
Albert Schweitzer, Alsatian theologian (1875-1965)
If one is too late to think, too vain to do a thing badly, too cowardly to admit it, one will never attain wisdom.
Cyril Connolly, British critic, author (1903-1974)
Be wiser than other people, if you can, but do not tell them so.
Philip Dormer Stanhope, 4th Earl of Chesterfield, British statesman, letter-writer (1694-1773)