Levity of mind is a great hindrance of repose, and the very change of wickedness is an addition to the wickedness itself; for it is inconstancy added to iniquity; we relinquish the thing we sought, and then we take it up again; and so divide our lives between our lust and our repentances. From one appetite we pass to another, not so much upon choice as for change; and there is a check of conscience that casts a damp upon all our unlawful pleasures, which makes us lose the day in expectation of the night, and the night itself for fear of the approaching light.