Z <- (X, Y) and (-Y, X) -> iZ
Back fires! Prepare for them, with all the strength and readiness you are able to, a force that consumes their resolve and binds their advance, so you may deter your biggest enemy and your enemy—along with others beyond them, unknown to you but known in the end. Whatever you expend in the way for the one who owns the end, will be restored to you as a reserve, and you will not be wronged. ...