The ancients developed an enduring metaphor for a polity's evolution: they drew an analogy between an individual human's life cycle, and developments undergone by a body politic. This metaphor was offered, in varying iterations, by Cicero (106–43 BCE), Seneca (c. 1 BCE – 65 CE), Florus (c. 74 CE – ca 130 CE), and Ammianus Marcellinus (between 325 and 330 CE – after 391 CE). This social-organism metaphor, which has been traced back to the Greek philosopher and polymath Aristotle (384–322 BCE), would recur centuries later in the works of the French philosopher and sociologist Auguste Comte (1798–1857), the English philosopher and polymath Herbert Spencer (1820–1903), and the French sociologist Émile Durkheim (1858–1917).