The life of a newborn baby is of less value than the life of a pig, a dog, or a chimpanzee.

Bioethicist Peter Singer, Princeton University

Nature eliminates the unfit and preserves the fit . . . It is man, not Nature, who has caused all the trouble. He has put his whole soul to saving the unfit…

Biologist Edward East, Harvard University

If. . . men were reared under precisely the same conditions as hivebees, there can hardly be a doubt that our unmarried females would, like the worker-bees, think it a sacred duty to kill their brothers, and mothers would strive to kill their fertile daughters; and no one would think of interfering.

Charles Darwin

Excepting in the case of man himself, hardly any one is so ignorant as to allow his worst animals to breed.

Charles Darwin

I do not believe people are in jail because they deserve to be. They are in jail simply because they cannot avoid it, on account of circumstances which are entirely beyond their control, and for which they are in no way responsible.

Famed defense attorney Clarence Darrow

Man is no more ‘responsible’ for becoming wilful and committing a crime than the flower for becoming red and fragrant

Nathaniel Cantor, Crime: Criminals and Criminal Justice (1932)

Three generations of imbeciles are enough.

Supreme Court Justice Oliver Wendell Holmes

It has taken Mother Nature long, long ages to turn fierce greedy hairy ape-like beasts into such people as we are. It will take us but two or three close-linked generations to make human beings far more superior to us than we are to the apes.

Feminist eugenist Charlotte Perkins Gilman

The American public is taxed, heavily taxed, to maintain an increasing race of morons, which threatens the very foundations of our civilization.

Planned Parenthood founder Margaret Sanger

In essence, we are nothing but a big fly.

Charles Zuker, genetic researcher at the University of California at San Diego

All we are doing is catching up with Darwin. He showed in the nineteenth century that we are simply animals. Humans had imagined we were a separate part of Creation, that there was some magical line between Us and Them. Darwin’s theory undermined the foundations of that entire Western way of thinking about the place of our species in the universe.

Bioethicist Peter Singer, Princeton University

In an important sense, ethics as we understand it is an illusion fobbed of on us by our genes to get us to cooperate.

Michael Ruse and E.O. Wilson

Defective human beings survive in modern societies because they “are preserved by charity, and . . . are allowed to reproduce. . . [T]hus natural selection, the great law of evolution and progress, is set at naught.”

Biologist Edwin Conklin, Princeton University

There is obviously some evolutionary basis to rape just like there is some evolutionary basis to all aspects of living things.

Craig Palmer, coauthor of A Natural History of Rape

In the last ten years we have come to realize humans are more like worms than we ever imagined.

Biologist Bruce Alberts, past president of the National Academy of Sciences

Although it is developed in the crude English fashion, “Darwin’s Origin of Species” is the book which, in the field of natural history, provides the basis for our views.

Karl Marx to Frederick Engels in 1860

According to a 2003 survey of leading scientists in the field of evolution, 87 percent denied the existence of God, 88 percent disbelieved in life after death, and 90 percent rejected the idea that evolution is directed toward an “ultimate purpose.”

Morality . . . is merely an adaptation put in place to further our reproductive ends.

Michael Ruse and E.O. Wilson

With savages, the weak in body or mind are soon eliminated…We civilised men, on the other hand, do our utmost to check the process of elimination…No one who has attended to the breeding of domestic animals will doubt that this must be highly injurious to the race of man…

Charles Darwin