Be unselfish. That is the first and final commandment for those who would be useful and happy in their usefulness. If you think of yourself only, you cannot develop because you are choking the source of development, which is spiritual expansion through thought for others.

Liberal education develops a sense of right, duty and honor; and more and more in the modern world, large business rests on rectitude and honor as well as on good judgment.

All business proceeds on beliefs, or judgments of probabilities, and not on certainties.

In some small field each child should attain, within the limited range of its experience and observation, the power to draw a justly limited inference from observed facts.

One could get a first-class education from a shelf of books five feet long.

The best way to secure future happiness is to be as happy as is rightfully possible to-day.

I have a conviction that a few weeks spent in a well organized summer camp may be of more value educationally than a whole year of formal school work.