Quotes on how habits form. Benjamin Franklin, George Eliot, Saint Tereasa of Avila, Saint Tereasa of Calcutta (Mother Tereasa ), Saint Augustine of Hippo. Don't let your sins turn into bad habits. All things in moderation..... including moderation. Our body has this defect that, the more it is provided care and comforts, the more needs and desires it finds. Habit if not resisted, soon becomes necessity.