Habit

Hasten to do good; refrain from evil. If you
neglect the good, evil will enter your mind.

If you do what is evil, do not repeat it or take
pleasure in making in a habit. An evil habit will cause
nothing but suffering.

If you do what is good, keep repeating it and take
pleasure in making it a habit. A good habit will
cause nothing but joy.

---The Dhammapada 116 - 118---