Who said “It is easy to replace man, and it will take no great time, where Nature has lapsed, to…”?

“All men by nature desire to know.”

“All nature wears one universal grin.”

“Nature provides exceptions to every rule.”

“Art is man's nature: Nature is God's art.”

“Nature never did betray the heart that loved her.”

“Happiness is not a matter of events; it depends upon the tides of the mind.”

“The sense of humor has other things to do than to make itself conspicuous in the act of laughter.”

“Let a man turn to his own childhood -- no further -- if he will renew his sense of remoteness, and of the mystery of change.”

“If there is a look of human eyes that tells of perpetual loneliness, so there is also the familiar look that is the sign of perpetual crowds.”

“A child is beset with long traditions. And his infancy is so old, so old, that the mere adding of years in the life to follow will not seem to throw it back—it is already so far.”

“The true color of life is the color of the body, the color of the covered red, the implicit and not explicit red of the living heart and the pulses. It is the modest color of the unpublished blood.”