I have often thought if the minds of men were laid open, we should see but little difference between that of the wise man and that of the fool. There are infinite reveries, numberless extravagances, and a perpetual train of vanities which pass through both. The great difference is, that the first knows how to pick and cull his thoughts for conversation, by suppressing some, and communicating others; whereas the other lets them all indifferently fly out in words.

Joseph Addison
Joseph Addison (1672-1719) English essayist, poet, statesman
Essay (1711-11-17), The Spectator, No. 225
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