If Nature denies eternity to beings, it follows that their destruction is one of her laws. Now, once we observe that destruction is so useful to her that she absolutely cannot dispense with it from this moment onward the idea of annihilation which we attach to death ceases to be real what we call the end of the living animal is no longer a true finish, but a simple transformation, a transmutation of matter. According to these irrefutable principles, death is hence no more than a change of form, an imperceptible passage from one existence into another.
Donatien Alphonse Franois de Sade, better known as the Marquis de Sade and nicknamed the Divine Marquis (June 2, 1740 December 2, 1814), was a French aristocrat and writer of philosophy-laden and often violent pornography, as well as some strictly philosophical works. His is a philosophy of extreme freedom, unrestrained by ethics, religion or law, with the egotistical pursuit of personal pleasure being the highest principle. Much of his writing was done during the 29 years he was incarcerated.