Buy only what you need, use only what is necessary.

"...of course, nothing will happened to our planet earth, only that we human will suffer. Why? Because earth has long been known for it's presence in the universe for over perhaps a trillion years. It will not just get "sick" or "vanish" just because we've used up on it's natural resources. Our planet earth will still be here, on the vast universe. Whereas on the contrary, the ones that are at great dangers are us. Because after all our natural resources are used up, after global warming reaches it's level of topmost capacity, you, me and everyone else will die. Perhaps only then people will start on thinking well, maybe we should stop the never ending development of our land and never ending production on commodities..."