By the age of forty, a man is responsible for his face. And his fate.

Our big social institutions do not reflect human nature; they distort it.

The world of employer and employee, like that of master and slave, debases both.

The nuclear bomb took all the fun out of war.

There never was a good war or a bad revolution.

We can have wilderness without freedom; we can have wilderness without human life at all, but we cannot have freedom without wilderness, we cannot have freedom without leagues of open space beyond the cities, where boys and girls, men and women, can live at least part of their lives under no control but their own desires and abilities, free from any and all direct administration by their fellow men.

What is the purpose of the giant sequoia tree? The purpose of the giant sequoia tree is to provide shade for the tiny titmouse.