I heard this piece today on NPR's morning edition:
...One day, {Stephen Greenblatt} was standing in the campus book store, and there, in a bin, selling for ten cents (good price, even in 1961) he noticed a thin, little volume called On the Nature of Things, by a Roman writer named Lucretius.
When he opened it, he found a description of how the universe came to be. Because Lucretius lived a couple of generations before the birth of Jesus, Stephen was expecting a tale of how gods, goddesses, earth, air, fire and water and an assortment of miracles created everything we see, but as he turned the pages, he says "his jaw dropped" and "his head began to burst open," because Lucretius' creation story doesn't feel remotely ancient. First of all, it's a radically secular account, ignoring gods, goddesses, heaven, hell, life after death, and intelligent design, but more surprising, its logic is eerily, almost spookily modern.
As Greenblatt describes it, Lucretius (borrowing from Democritus and others), says the universe is made of an infinite number of atoms "moving randomly through space, like dust motes in a sunbeam, colliding, hooking together, forming complex structures, breaking apart again, in a ceaseless process of creation and destruction. There is no escape from this process. ... There is no master plan, no divine architect, no intelligent design.
All things, including the species to which you belong, have evolved over vast stretches of time. The evolution is random, though in the case of living organisms, it involves a principle of natural selection. That is, species that are suited to survive and to reproduce successfully, endure, at least for a time; those that are not so well suited, die off quickly. But nothing ... lasts forever. Only the atoms are immortal."
It's worth a listen by going to:
http://www.npr.org/blogs/krulwich/2011/09/19/140533195/lucretius-man-of-modern-mystery?ps=cprs