What is man? Throughout history great minds have tried to define us as a species, but the essence of humanity has proved hard to pin down. “Man is a featherless biped”, Plato concluded, although he was somewhat dissatisfied with this as a definition. “Man is a reasoning animal”, wrote Seneca, echoing Aristotle. “Man is a tool using animal”, said Carlyle, anticipating modern anthropology. Man is “a poor, bare, forked animal”, wrote Shakespeare in his habitual pessimism about humanity.
