Natural things ought to be respected as “natural” beings , which means that we should try our best to avoid interfering with their natural existence and when it is necessary, to restore them into their natural state.（self-made）
Obviously, here I use "nutural things" to mean things like trees,flowers, animals,fish. But "thing" has such a broad range of meaning, that "natural things" may cover human body and human imagination, human emotion. So does anyone have any better alternative? Maybe "natural object" suits to my purpose? But it seems too technical a term?