wrong, western philosophy is often based on dichotomies - something is either this or that, but it is more of an analytical tool (I am not nature despite that I am a part of nature). Eastern philosophies are often mystic, though there is western mysticism - that some aspects of existence are incomprehensible on a rational basis and therefore dichotomies are illusory. But such a perspective does not inherently make people better stewards of the environment - in fact they might conclude that their every action is “natural” by definition.

“the necessity always to have been” could mean that for something to BE permanent, it is always necessary that it has existed previously. Whether any thing in this universe can be said to be permanent under such a criterion (within the perspective of spacetime) is doubtful. But if time is a feature of this universe, then there could be perspectives beyond it where all of this universe is permanent, I suppose.