"But the voice of anatomy, like the voice of all nature, never reaches the mental ear of the Great Commoner. It is the novel province of anatomy to tell the truth, the whole truth, and nothing but the truth about the structure, the origin and the history of man."

“Every breath you draw, every accelerated beat of your heart in the emotional periods of your oratory depend upon highly elaborated physical and chemical reactions and mechanisms which nature has been building up through a million centuries. If one of these mechanisms, which you owe entirely to your animal ancestry, were to be stopped for a single instant, you would fall lifeless on the stage. Not only this, but some of your highest ideals of human fellowship and comradeship were not created in a moment, but represent the work of ages.”

“This chain of human ancestors was totally unknown to Darwin. He could not have even dreamed of such a flood of proof and truth.”

“Direct observation of the testimony of the earth ... is a matter of the laboratory, of the field naturalist, of indefatigable digging among the ancient archives of the earth's history. If Mr. Bryan, with an open heart and mind, would drop all his books and all the disputations among the doctors and study first hand the simple archives of Nature, all his doubts would disappear; he would not lose his religion; he would become an evolutionist.”

“Today the earth speaks with resonance and clearness and every ear in every civilized country of the world is attuned to its wonderful message of the creative evolution of man, except the ear of William Jennings Bryan; he alone remains stone-deaf, he alone by his own resounding voice drowns the eternal speech of nature.”

“Bibliography of the published writings of Henry Fairfield Osborn for the years 1877-1915”

“brief biographical sketch”