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.

If you dress a new something in old habits, it’s easier for the public to accept it.

Small wins are a steady application of a small advantage.

Self-discipline has a bigger effect on academic performance than does intellectual talent.

At some point, if you're changing a really deep-seated behavior, you're going to have a moment of weakness.

Once you understand that habits can change, you have the freedom and the responsibility to remake them. Once you understand that habits can be rebuilt, the power of habit becomes easier to grasp and the only option left is to get to work.

This is the real power of habit: the insight that your habits are what you choose them to be.