Habit is unthinking action, and Aristotle said 'Acts are done from habit which men do because they have often done them before.' Whilst compulsion is unpleasant and un-useful repetition of action, habit is pleasant and generally useful.

'Habit, whether acquired by mere familiarity or by effort, belongs to the class of pleasant things, for there are many actions not naturally pleasant which men perform with pleasure, once they have become used to them.'