The following general definition of an animal: a system of different organic molecules that have combined with one another, under the impulsion of a sensation similar to an obtuse and muffled sense of touch given to them by the creator of matter as a whole, until each one of them has found the most suitable position for its shape and comfort.
Denis DiderotI have not the hope of being immortal, because the desire of it has not given me that vanity.
Denis Diderot