Is Aristotle committed, as a theoretical matter, to fixed species in biology? The answer seems to be a resounding no, if we were to infer his theoretical commitments from the actual practice found in his biological works. The answer, however, is far from clear, if we turn to the ‘philosophical discussion of biology’ found in Book 1 of Parts of Animals. In fact, I shall note that its context suggests that, contrary to some recent interpretations put forward, the phrase τὰ (...) ἔσχατα εἴδη at 644a23 is best translated and understood as ‘infima species’, and that such a reading implies that Aristotle favours the methodology that reflects his theoretical commitment to fixed species. (shrink)

Joe Sachs has followed up his brilliant translation of Aristotle's Physics with a new translation of Metaphysics. Sachs's translations bring distinguished new light onto Aristotle's works, which are foundational to history of science. Sachs translates Aristotle with an authenticity that was lost when Aristotle was translated into Latin and abstract Latin words came to stand for concepts Aristotle expressed with phrases in everyday Greek language. When the works began being translated into English, those abstract Latin words or their cognates were (...) used, thus suggesting a level of jargon and abstraction, and in some cases misleading interpretation, which was not Aristotle's language or style. These important new translations open up Aristotle's original thought to readers. (shrink)