No one who, since the publication of Origin of Species in 1859, has impartially investigated this evidence has questioned the validity or the usefulness of the idea of continuous evolution. The fact that every biologist who undertakes an exhaustive study of the evidence comes to the conclusion that living organisms do exhibit such evolutionary relationships surely indicates the reliability of the conclusion. The doctrine is no longer questioned by any biologist. I would also say that it is the consciousness of this challenge which has been the leading force in biology ever since it seriously started to develop at the end of the eighteenth century. After Darwin , Vol.
Human history is a continuation of biological evolution in a different form.
He who fails to honor either genius for his positive accomplishments inevitably attracts the speculative psychiatric eye to himself.