It was time to expect more of myself. Yet as I thought about happiness, I kept running up against paradoxes. I wanted to change myself but accept myself. I wanted to take myself less seriously -- and also more seriously. I wanted to use my time well, but I also wanted to wander, to play, to read at whim. I wanted to think about myself so I could forget myself. I was always on the edge of agitation; I wanted to let go of envy and anxiety about the future, yet keep my energy and ambition.

Get enough exercise and sleep: Sounds trivial, but it's not. You may have the urge to work 24/7, to skip the gym and to stay up late to get a few more things done. That's short-sighted. Exercise and sleep are critical to having the physical and mental energy necessary to meet a challenge.

Working is one of the most dangerous forms of procrastination.

I can build a happy life only on the foundation of my own nature.

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

It's about living in the moment and appreciating the smallest things. Surrounding yourself with the things that inspire you and letting go of the obsessions that want to take over your mind. It is a daily struggle sometimes and hard work but happiness begins with your own attitude and how you look at the world.

We are happy when we are growing.