But to change an old habit, you must address an old craving. You have to keep the same cues and rewards as before, and feed the craving by inserting a new routine. – Charles Duhigg

We first make our habits, and then our habits make us. – Og Mandino

The Golden Rule of Habit Change: You can’t extinguish a bad habit, you can only change it. – Charles Duhigg