Willpower isn’t just a skill. It’s a muscle, like the muscles in your arms or legs, and it gets tired as it works harder, so there’s less power left over for other things.
Charles DuhiggWhen people have a willpower failure, it's because they haven't anticipated a situation that's going to come along.
Charles DuhiggCompanies aren’t families. They’re battlefields in a civil war. Yet despite this capacity for internecine warfare, most companies roll along relatively peacefully, year after year, because they have routines—habits—that create truces that allow everyone to set aside their rivalries long enough to get a day’s work done.
Charles Duhigg