Don Quixote followed nature, and being satisfied with his first sleep, did not solicit more. As for Sancho, he never wanted a second, for the first lasted him from night to morning, indicating a sound body and a mind free from care; but his master, being unable to sleep himself awakened him, saying, "I am amazed, Sancho, at the torpor of thy soul; it seems as if thou wert made of marble or brass, insensible of emotion or sentiment!
Miguel de CervantesTo think that the affairs of this life always remain in the same state is a vain presumption; indeed they all seem to be perpetually changing and moving in a circular course. Spring is followed by summer, summer by autumn, and autumn by winter, which is again followed by spring, and so time continues its everlasting round. But the life of man is ever racing to its end, swifter than time itself, without hope of renewal, unless in the next that is limitless and infinite.
Miguel de Cervantes