"Moral behaviour, Kant is adamant, is rational behaviour; we have good reason to be moral. This is a fundamental principle of morality: if you ought to do something then you have a reason to do it. It makes no sense to say “I see that I ought to give money to charity, but I have no reason to.” If we ought to do something then that is a reason to do it. What is more, a moral reason is always a stronger reason for doing something than any other reason. If we have a moral reason to do a thing, and another reason not to do it, then rationally speaking we ought to do it. Moral behaviour is always rational."
Hence #1
Hence #1