Welcome back. Please post some thoughts on the readings assigned for Monday. Pay particular attention to the Lindberg reading in contrast to the readings based on Aristotle’s De anima. This section on optics has a dramatic arc that requires that you understand the distinction between the various optical theories. Recall Lucretius too. Pay particular attention to note 6 on page 393 and all of our endless discussions on souls, spirits, and forms… and now “species” too.