Good people are good because they've come to wisdom through failure. We get very little wisdom from success, you know.

William Saroyan

The older I grow the more I distrust the familiar doctrine that age brings wisdom.

Henry Louis Mencken

The human mind might be sewed, but is always tore.

Greg Evans

The wisest man is he who does not fancy that he is so at all.

Nicholas Boileau

A man never reaches that dizzy height of wisdom that he can no longer be lead by the nose.

Mark Twain