For sartre, there is no preexisting human essence, set by god or nature, that determines what people should or will do It emphasizes the intrinsic value of nature, value, which is independent from. As a result, each individual must define their own essence, and their essence is merely the sum of their actions.
Normative ethical relativism is a theory, which claims that there are no universally valid moral principles. Environmental ethics attempts to overcome the anthropocentric and personalistic attitude of traditional ethics Second, the natural state model purports to capture the idea that human nature describes only “normal” humans.
If it works, there's almost certainly a reason, so figure that reason out before meddling Nihilism is the belief that not only is there no intrinsic meaning in the universe, but that it’s pointless to try to construct our own as a substitute.