So the TLS's answer to the categorical imperative is "be as good as you can be I guess. . ." That has the same problems that they find in utilitarianism, only even more so. It is even more vague and even less calculable than they claim utalitarianism is. How good is a person capable of being? How do we find out how good an individual is capable of being? Are psychopaths given special allowances? What about people with very little self control?
If ethics is dependent on knowledge does that mean Aztec human sacrifices were a morally great deed when performed by the Aztecs under a misconception that the souls were going to heaven? What about Hitler's genocide under the misconceived belief that he was creating a better and more peaceful Europe?
If ethics is dependent on knowledge does that mean Aztec human sacrifices were a morally great deed when performed by the Aztecs under a misconception that the souls were going to heaven? What about Hitler's genocide under the misconceived belief that he was creating a better and more peaceful Europe?