“Every human being is intended to have a character of his own; to be what no others are, and to do what no other can do
“Man's spiritual nature is no dream of theologians to vanish before the light of natural science. It is the grandest reality on earth
“In the survival of favoured individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection
“Man may be considered as a superior species of animal that produces philosophies and poems in about the same way a silkworm produces their cocoons and bees their hives
“There is peace more destructive of the manhood of living man than war is destructive of his material body.