The moral virtues, then, are produced in us neither by nature nor against nature. Nature, indeed, prepares in us the ground for their reception, but their complete formation is the product of habit.
All human actions have one or more of these seven causes: chance, nature, compulsion, habit, reason, passion, and desire.
Habit is habit and not to be flung out of the window by any man, but coaxed downstairs a step at a time.
Do something every day that you don't want to do; this is the golden rule for acquiring the habit of doing your duty without pain.