If we don't change, we don't grow. If we don't grow, we aren't really living.

The strongest principle of growth lies in human choice.

The minute a man ceases to grow, no matter what his years, that minute he begins to be old.

When I am grown to man's estate I shall be very proud and great. And tell the other girls and boys Not to meddle with my toys.

Enough shovels of earth -- a mountain. Enough pails of water -- a river.

Climb mountains to see lowlands.

You don't learn to hold your own in the world by standing on guard, but by attacking and getting well hammered yourself.