"I am your constant companion. I am your greatest asset or heaviest burden. I will push you up to success or down to disappointment. I am at your command. Half the things you do might just as well be turned over to me. For I can do them quickly, correctly, and profitably. I am easily managed; just be firm with me. Those who are great, I have made great. Those who are failures, I have made failures... Who am I? I am a habit."

~Robin Crow