“When we tug at a single thing in nature, we find it attached to the rest of the world.”

“When one tugs at a single thing in nature, he finds it attached to the rest of the world.”

“When we try to pick out anything by itself, we find it hitched to everything else in the universe.”

“How narrow we selfish conceited creatures are in our sympathies! How blind to the rights of all the rest of creation!”

“One touch of nature makes the whole world kin.”

“The world, we are told, was made especially for man — a presumption not supported by all the facts.”

“There is not a fragment in all nature, for every relative fragment of one thing is a full harmonious unit in itself.”