Should you shield the canyons from the windstorms you would never see the true beauty of their carvings.

Nature is trying very hard to make us succeed, but nature does not depend on us. We are not the only experiment.

Nature, to be commanded, must be obeyed.

The poetry of the earth is never dead.

To make a prairie it takes a clover and one bee, One clover, and a bee, And revery. The revery alone will do, If bees are few.

To be interested in the changing seasons is a happier state of mind than to be hopelessly in love with spring.

There are no passengers on spaceship earth. We are all crew.

Ah, summer, what power you have to make us suffer and like it.

All things are artificial, for nature is the art of God.

We may brave human laws, but we cannot resist natural ones.