A foolish consistency is the hobgoblin of little minds, adored by
little statesmen and philosophers and divines. With consistency a great
soul has simply nothing to do. He may as well concern himself with his
shadow on the wall. Speak what you think now in hard words and to-morrow
speak what to-morrow thinks in hard words again, though it contradict
every thing you said to-day.
-- Ralph Waldo Emerson, Self-Reliance