The Crazy Texan, Mr. Rick Roderick, has a great grasp of the development of ethics in the west. If classical virtue ethics were concerned in developing persons with good character, modern ethics became concerned with quantification and instrumentalization.
To understand what I’m talking about, you should listen to this whole series, namely, ‘Philosophy and Human Values.’ But this particular lecture on Kant (for which Roderick has a great explanation of the categorical imperative) and modern ethics in general is certainly worth your time.

