The Carnival of the Animals (better known in the English-speaking world as "Twinkle Twinkle Little Star"), the French nursery rhymes "Au clair de la lune", and "J'ai du bon tabac" (the piano plays the same melody upside down), the popular anthem "Partant pour la Syrie", as well as the aria "Una voce poco fa" from Rossini's "The Barber of Seville" can also be heard. The musical joke in this movement, according to Leonard Bernstein's narration on his recording of the work with the New York Philharmonic, is that the musical pieces quoted are the fossils of Saint-Saëns's time. Two pianos and cello: the lushly romantic
Moral status of animals in the ancient world attempt the creation of a taxonomical categorization and hierarchy of animals. Aristotle perceived some similarities between humans and other species and developed a sort of "psychological continuum", recognising that human and non-human animals differ only by degree in possessing certain temperaments. Nevertheless, he denied animals rationality and moral equality. "Plants are created for the sake of animals," he wrote, "and animals for the sake of men." Aristotle argued that humans were the “masters” in his created hierarchical structure based upon their rational powers. One of Aristotle's pupils, Theophrastus, argued against eating meat on the grounds that it robbed animals of