Thomas Boston, Works, 2:311:
Consider the vanity of the world. It is an overvaluing of earthly advantages that leads people aside into unrighteous ways, Hos. 12:8. A due impression of the vanity and emptiness thereof, would let you see that they are not worth a man’s going off his way for them. It is not long till very little will serve us: death comes, and we have no more to do with it; a coffin and a winding sheet, and a little room in the heart of the earth, which none will grudge us, will be all we will need. What madness is it, then, to wound the conscience for such a pitiful business?
Source: http://www.puritanboard.com/f25/consider-vanity-world-82905/, Comment #1 (Thank You, Reverend Winzer!)