Your net worth to the world is usually determined by what remains after your bad habits are subtracted from your good ones.

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

Habit is the second nature which destroys the first.

Man becomes a slave to his constantly repeated acts. What he at first chooses, at last compels.

The habit of looking on the best side of every event is worth more than a thousand pounds a years.

One might call habit a moral friction: something that prevents the mind from gliding over things but connects it with them and makes it hard for it to free itself from them.

How use doth breed a habit in man!

Habit, if not resisted, soon becomes necessity.

Habit is a cable; we weave a thread of it each day, and at last we cannot break it.

Habit is thus the enormous fly-wheel of society, its most precious conservative agent. It alone is what keeps us all within the bounds of ordinance, and saves the children of fortune from the envious uprisings of the poor.