Animals are such agreeable friends—they ask no questions, they pass no criticisms.

Nature’s rules have no exceptions.

If people think Nature is their friend, then they sure don’t need an enemy.

Those things are better which are perfected by nature than those which are finished by art.

I always think of nature as a great spectacle, somewhat resembling the opera.

There is not a sprig of grass that shoots uninteresting to me.

God writes the Gospel not in the Bible alone, but on trees and flowers and clouds and stars.