You'll do what you think you want to do, or what you think you ought to do. If you're very lucky, luckier than anybody I know, the two will coincide.

You can't retire to weakness -- you've got to learn to control strength.

Fossil energy is the worst discovery man ever made, and his disruption of the carbon-oxygen cycle is the greatest of his triumphs over nature. Through thinner and thinner air we labor toward our last end, conquerors finally of even the earth chemistry that created us.

Largeness is a lifelong matter - sometimes a conscious goal, sometimes not. You enlarge yourself because that is the kind of individual you are. You grow because you are not content not to.

[I]t is dangerous for a bride to be apologetic about her husband.

It is the abiding concern of thinking people to preserve what keeps men human-to save our contact with nature of which we are a part.

There is nothing like a doorbell to precipitate the potential into the kinetic.