Money. It's a good servant but a bad master.

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.

I think the big myth about habits, and happiness too, is that there's somehow a magic "one size fits all" solution. That, "If it works for you it's going to work for me," and it's just a matter of figuring out what that habit would be, whether that's do it first thing in the morning, or start small, or do it for thirty days, or give yourself a cheat day.

Habits are the invisible architecture of everyday life.

One of the best ways to make yourself happy in the present is to recall happy times from the past. Photos are a great memory-prompt, and because we tend to take photos of happy occasions, they weight our memories to the good.

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.