A stubborn mind conduces as little to wisdom or even to knowledge, as a stubborn temper to happiness

To a resolute mind, wishing to do is the first step toward doing. But if we do not wish to do a thing it becomes impossible.

The three indispensable of genius are: understanding, feeling, and perseverance; the three things that enrich genius are: contentment of mind, the cherishing of good thoughts, and the exercise of memory

Human beings are complicated, yet from our experience of working with hundreds of thousands of people, we’ve learned that most or even all of the average person’s neuroses and hang-ups disappear when they start giving and serving others.

You can never know everything. Part of what you know is always wrong. Perhaps the most important part. A portion of wisdom lies in knowing that. A portion of knowledge lies in going on anyway.

I don't get angry very often. I lose my temper rarely. And when I do, there's always a legitimate cause. Normally I have a great lightness of being. I take things in a very happy, amused way.