Such closet politicians never fail to assign the deepest motives for the most trifling actions; instead of often ascribing the greatest actions to the most trifling causes, in which they would be much seldomer mistaken. They read and write of kings, heroes, and statesmen, as never doing any thing but upon the deepest principles of sound policy. But those who see and observe kings, heroes and statesmen, discover that they have headaches, indigestions, humours, and passions, just like other people; every one of which, in their turns, determine their wills, in defiance of their reason.

Lord Chesterfield (1694-1773) English statesman, wit [Philip Dormer Stanhope]

Letter to his son, #205 (5 Dec 1749)
    (Source)