Our thinking often influences how we feel. If it rains on Saturday, the farmers are happy and the golfers are sad. It’s the same rain, but they’re thinking different thoughts about the rain.

I first learned the importance of how we think when I was at the mental health clinic (remember, I was on staff, not actually in the mental health clinic). We had diagnostic meetings every afternoon — boring meetings. I thought, “How could I liven up these meetings?”