but i dont know why now — Kizzy

Because in his outmoded language he calls it "morality".

It appears to me both are still apt - (this is merely 'a take' from myself, not an intended outright claim)..morality is what one believes about how to act, and Ethics is the framework which leads one there. In this way, morality is general, and Ethics can be context-bound (business ethics, procreative ethics etc...). Still, behaviours there are moral - but informed by the, usually somewhat formalized, Ethical system informing it.