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

—Kurt Vonnegut, 1988

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

—Ronald Reagan, 1965

When you have only two pennies left in the world, buy a loaf of bread with one, and a lily with the other.

—Chinese proverb

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

—Arthur Schopenhauer, 1819

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

—Bernard de Fontenelle, 1686

A righteous man regardeth the life of his beast.

—The Bible

Nature is the art of God.

—Thomas Browne, 1635

Men argue, nature acts.

—Voltaire, 1764

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

—Lucretius, c. 57 BC

Drive out nature with a pitchfork, and she will always come back. 

—Horace, c. 25 BC

Nature never breaks her own laws.

—Leonardo da Vinci, c. 1500

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

—Cicero, c. 45 BC

A garden must be looked into, and dressed as the body.

—George Herbert, 1640

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

—Richard P. Feynman, 1965

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

—George Eliot, 1857

Nature’s rules have no exceptions.

—Herbert Spencer, 1851

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

—Thomas Jefferson, 1790

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

—Martin Luther

The temple bell stops but I still hear the sound coming out of the flowers.

—Basho, c. 1690

Nature is immovable.

—Euripides, c. 415 BC