Conviction Quote by Asa Gray

All known living bodies are sharply divided into two special kingdoms, based upon the essential differences which distinguish animals from plants, and in spite…

— Jean-Baptiste Lamarck

It was implicitly supposed that every living thing was distinctively plant or animal; that there were real and profound differences between the two, if…

— Asa Gray

Other kingdoms are still present on earth along with the kingdom of the heavens. That is the human condition.

— Dallas Willard

It was always understood that plants and animals, though completely contrasted in their higher representatives, approached each other very closely in their lower and…

— Asa Gray

The chemical differences among various species and genera of animals and plants are certainly as significant for the history of their origins as the…

— Ray Lankester

“As the species of the same genus usually have, though by no means invariably, much similarity in habits and constitution, and always in structure,…

— Charles Darwin

To be a Naturalist is better than to be a King.

— William Beebe

“In the intricate and mutable space-time geometry at the black hole, in-falling matter and energy interacted with the virtualities of the vacuum in ways…

— Poul Anderson

In a broad systems sense, an organism's environment is indistinguishable from the organism itself.

— Kevin Kelly

“Although much remains obscure, and will long remain obscure, I can entertain no doubt, after the most deliberate study and dispassionate judgment of which…

— Charles Darwin

We have spoken of beings so low in the scale that the individuals throughout their whole existence are not sufficiently specialized to be distinctively…

— Asa Gray

It is really laughable to see what different ideas are prominent in various naturalists' minds, when they speak of 'species'; in some, resemblance is…

— Charles Darwin