That's what philosophers do
No, that's what some philosophers do. You can't just expel the likes of Michael Oakeshott or Nietzsche from philosophy. Even Rawls claimed at times to be making a political, rather than ethical, argument. The notion that ethics have to be "built from scratch" would be highly controversial in most philosophy departments I'm aware of.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.