"It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change."

"Looking to the world at no very distant date, what an endless number of the lower races will have been eliminated by the higher civilized races throughout the world."

"I see no good reason why the views given in this volume should shock the religious feelings of any one."

"There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that whilst this planet has gone cycling on according to the fixed la…"

"The fact that I can't remember anything from the first three years of my life is no proof that I wasn't an embryo then."