If we destroy something around us we destroy ourselves. If we cheat another, we cheat ourselves.
Gautama BuddhaMonks, when ignorance is abandoned, and knowledge arises in the monk, with the ending of ignorance and the arising of knowledge he clings neither to sense-pleasures, nor does he cling to views, nor to precepts and vows, nor to a Self-doctrine. Not clinking, he is not disturbed; not disturbed, he attains individually nibbana.
Gautama Buddha