John Burroughs Quotes
When Darwin published his conclusion that man was descended from an apelike ancestor who was again descended from a still lower type, most people were shocked by the thought; it was intensely repugnant to their feelings.
Burroughs, John. Time and Change. Houghton Mifflin Company, 1912.
Darwin did not develop an interest in the origin of life in a vacuum. His grandfather and many other scientists and naturalists had realized that species evolved and improved over tome and generations. What Charles Darwin added was the principles of the mechanism of how it all worked.
Evolution sometimes produce or retain components that have no purpose or are even inefficient. But he is urging the biologist to remember that none of the life form were designed much less designed efficiently. We humans have an appendix for example, which does nothing positive and sometimes gets infected and kills us. Yet it is still there. We have so much else on the positive side that a few weaknesses are not material to our survival.
John Burroughs was an American naturalist and nature essayist, active in the U.S. conservation movement. The first of his essay collections was Wake-Robin in 1871.