There's a kind of magical thinking about these kinds of things. Throw away those bad photos before the "magic" attaches to them, so the good ones stand out.

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.

Don't let perfect be the enemy of good.

Enthusiasm is more important than innate ability, it turns out, because the single more important element in developing an expertise is your willingness to practice.

A blog is something that, everyday there's a new thing and that's part of the fun of it, you're just constantly moving forward. A book really gives you more time to reflect and think hard on things very, very deep.

Self-knowledge makes me happy.

Negative emotions like loneliness, envy, and guilt have an important role to play in a happy life; they’re big, flashing signs that something needs to change.