Think about what kind of person you are and shape your habits, and your happiness, to show what's true about you instead of thinking that you can just import the right answer from the outside.

Turn off your email; turn off your phone; disconnect from the Internet; figure out a way to set limits so you can concentrate when you need to, and disengage when you need to. Technology is a good servant but a bad master.

One of the things that surprised me the most is how often we assume that because something's fun for someone else, it makes somebody else happy, it will make us happy.

A 'treat' is different from a 'reward', which must be justified or earned. A treat is a small pleasure or indulgence that we give to ourselves just because we want it. Treats give us greater vitality, which boosts self-control, which helps us maintain our healthy habits.

I'm a person who's fine saying 'No.' I like saying to myself, "no gossiping," "no nagging."

The most reliable predictor of not being lonely is the amount of contact with women. Time spent with men doesn't make a difference.

A book is a better way to develop a complicated idea, or to tell a big story and to show how ideas weave in and out of each other, which is something that comes up a lot in happiness because all these ideas are interconnected.