Question

How many schools of thought are there when it comes to moral values? ​

Answer 1

Answer:

The two other main lines are Utilitarianism/Consequentialism, of which I am a devotee, and also Deontological ethics (Kant is the most famous proponent).

There are other smaller branches though like Ideal Observer theories ie John Rawls “A Theory of Justice”, and you’ll occasionally hear Virtue ethics brought up, the classic text for this is Aristotle tome “Nicomachean Ethics”,

These should cover most of modern ethics.