Doing good should just come naturally, right? Far as I know, little boys continue pulling the wings off flies. Hey, kid- good luck if you're absolutely sure that you're gonna live long enough to make up for all your meanness.
Snake oil dealers came up with heaven as a concept just before car salesmen originated the extended warranty. Everybody wants to kick karma down the road.
No matter which of those books you pick up, love is always the answer.
Give us peace on earth and end this dreadful, dreadful war.