The Origin of Species of Means of Natural Selection, or the Preservation of Favored Races in the Struggle for Life -- the favored race being the white race.
He also taught that women were biologically inferior to men and that human sexual differences were due in part to natural selection.
This is rather a narrow minded man in the end, and not a good role model for children, who are taught his theory as though absolute truth. Part of his popularity is that many elite and power seeking individuals use his theories to justify genocide or industrial monopoly.
"J. D. Rockefeller, who used Darwinian thought to justify industrial monopoly without restraint, said, "The growth of large business is merely a survival of the fittest."
"More ominous was the use of Darwin by Adolf Hitler. As early as 1923 in his book Mein Kampf, Hitler expressed his adherence to evolution in justifying genocide. "
I believe there is a prime creator who has created all species of living things, and evolution is part of the grand scheme of creation. But apes do not become humans. Humans will not become apes.
We evolve by our choices and the conditions of our environment; ice age might make humans hairier. We move in the direction of our choices within a lifetime and gain strength in that direction, whether it be the choice of physical, mental, emotional, or spiritual development.
In the end our collective choices determine our evolution as a species. Even in the midst of our present dark time in history, humans struggle with what they will value in the future, as the age of animal-human marked by ego, greed, seeking power over others, and seeking wealth, comes to a close.
We become a kinder more sensitive species of human seeking those values of the heart and spirit. THAT is evolution and the path prime creator created for us to move along, as we are ready to move.