The life we all live is amateurish and accidental; it begins in accident and proceeds by trial and error toward dubious ends.

If the national park is, as Lord Bryce suggested, the best idea America has ever had, wilderness preservation is the highest refinement of that idea.

You have to get over the color green; you have to quit associating beauty with gardens and lawns; you have to get used to an inhuman scale; you have to understand geological time.

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.

Youth hasn't got anything to do with chronological age. It's times of hope and happiness.

It is almost impossible to write fiction about the Mormons, for the reason that Mormon institutions and Mormon society are so peculiar that they call for constant explanation.

If you avoid the killer diseases and keep the degenerative ones under control with sensible diet and exercise and whatever chemotherapy you need to stay in balance, you can live nearly forever.