“When man will return to nature, nature will return to him.”

“It would seem from this fact, that man is naturally a wild animal, and that when taken from the woods, he is never happy in his natural state, 'till he returns to them again.”

“The pleasure of novelty is by its very nature more subject than any other to the laws of diminishing returns.”

“The seasons of nature repeat annually. Spring goes off and comes back again. But for us, humans, the time does not return.”

“Nature is, above all, profligate. Don't believe them when they tell you how economical and thrifty nature is, whose leaves return to the soil. Wouldn't it be cheaper to leave them on the tree in the first place? This deciduous business alone is a radical scheme, the brainchild of a deranged manic-depressive with limitless capital. Extravagance! Nature will try anything once.”

“Be not disgusted, nor discouraged, nor dissatisfied, if thou dost not succeed in doing everything according to right principles; but when thou bast failed, return back again, and be content if the greater part of what thou doest is consistent with man's nature, and love this to which thou returnest”