The success of Darwinism was accomplished by a decline in scientific integrity.

I am not satisfied that Darwin proved his point or that his influence in scientific and public thinking has been beneficial ... the success of Darwinism was accomplished by a decline in scientific integrity.

This situation, where men rally to the defense of a doctrine they are unable to define scientifically, much less demonstrate with scientific rigor, attempting to maintain its credit with the public by the suppression of criticism and the elimination of difficulties, is abnormal and undesirable in science.