O sleepers! what a thing is slumber! Sleep resembles death. Ah, why then dost thou not work in such wise as that after death thou mayst retain a resemblance to perfect life, when, during life, thou art in sleep so like to the hapless dead?
Leonardo da VinciThough I may not . . . be able to quote other authors, I shall rely on that which is much greater and more worthy - on experience.
Leonardo da Vinci