> Zeno the Stoic's
> treatise The Republic was burned b/c it argued for
> abolishing slavery -- maybe the early Stoics were
> Aristotle's target?
No. Stoicism is post-Aristotelian.
Aristotle died in 322 and Zeno of Citium, the original Stoic, was born in 333.
Zeno's Republic is certainly lost, but what's the evidence for thinking that it was burned because of its argument about slavery (whatever that was, which is difficult to reconstruct from what we do know about the text).
Chris