I think self-discipline is something, it's like a muscle. The more you exercise it, the stronger it gets.

I think the problem with the word 'happiness' is that it sounds fluffy. It sounds like something trivial that we shouldn't be concerned with.

If you set goals for yourself, and you're like a lot of other people, you probably realize it's not that your goals are physically impossible that's keeping you from achieving them; it's that you lack the self-discipline to stick to them. It's physically possible to lose weight. It's physically possible to exercise more.

People who care about animals tend to care about people. They don't care about animals to the exclusion of people. Caring is not a finite resource and, even more than that, it's like a muscle: the more you exercise it, the stronger it gets.

I think of discipline as the continual everyday process of helping a child learn self-discipline.

I used to think the press was a necessary evil and now I don't think it is. I think it's something you choose.