Naturalism
NATURALISM. In the broadest sense, naturalism can denote any philosophy in which "nature" or "the natural" functions as the most general explanatory or normative concept. What counts as naturalism in a particular context depends upon how the term nature and its cognates are used. Given the long and varied history of such terms in Western thought, it should not be surprising that any two doctrines named "naturalism" may have little more than etymological connections in common.
History and Definitions
Even in ancient Greece, "naturalism" designated several distinct positions. For the Cynics, naturalism consisted in severe condemnation of conventional values and artificial virtues. The virtuous man is one who lives naturally, but living naturally requires a rigorously ascetic practice in which all conventional and artificial goods are shunned. Stoic naturalism also sought detachment from the conventional and the artificial, and agreed that the virtuous man is one who lives naturally, but its conception of nature was articulated in an elaborate cosmology. Human nature, for the Stoics, is part of cosmic nature, and virtue is identified with conformity to natural law. Both Cynicism and Stoicism take us a great distance from Aristotle (384–322 BCE), who resisted any attempt to abstract the virtuous life from the polis but who nonetheless looked with favor upon something called "naturalism." Man, according to Aristotle, is by nature political, and this conviction leaves no room for the contrasts Cynics and Stoics need to define their positions.