Quotes: about Nature

Mark Twain in one of his lectures writes about the Law of Periodical repetition

Nature has no originality. She has a superb and amazing and infinitely varied equipment of old ones, but she never adds to them. She repeats- repeats- repeats. When she puts together a man and is satisfied with him, she is loyal to him, she stands by him through thick and thin forevermore, she repeats him by billions and billions of examples, and physically and mentally the average remains exactly the same, it doesn’t vary a hair between the first batch, middle batch and last batch