We never are definitely right; we can only be sure we are wrong.

Nature’s rules have no exceptions.

Nature is immovable.

A righteous man regardeth the life of his beast.

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

Animals hear about death for the first time when they die.

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

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

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

A tree’s a tree. How many more do you need to look at?

Nature never breaks her own laws.

Men argue, nature acts.

Nature resolves everything into its component elements, but annihilates nothing.