"It is a wonderful fact that we can understand so much."

"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…"

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

"Man tends to increase at a greater rate than his means of subsistence."

"My mind seems to have become a kind of machine for grinding general laws out of large collections of facts, but why this should have caused the atrophy of that part of the brain alone, on which the hi…"