Whatsoever causes no annoyance when it is present, causes only a groundless pain in the expectation. Death, therefore, the most awful of evils, is nothing to us, seeing that, when we are, death is not come, and, when death is come, we are not. It is nothing, then, either to the living or to the dead, for with the living it is not and the dead exist no longer.
Tell him he's wrong. Tell him that even if he's right about waiting, he's right for the wrong reasons, and that makes him all the way wrong.