GrayzBDF seems to have discontinued his blog but skimming through some of his older posts, this is what made Critical get a strange tingly feeling and go, ZOMG SOMEONE ELSE EXACTLY GETS IT!
People can say what they want with whichever arguments they have, but it's simple; I choose a goal, learn what I need to get there and do it. Every single time that I choose a goal and shoot for it, I reach it, without fail. It's all just a matter of how long it takes to reach the goal, if you do the same things that other succesful people do. You can't fail if you're on a successful path. And success is simply "the realization of a worthy ideal" -Earl Nightingale. Brian Tracy would argue that you can reach any goal, "within reason", which may hold true, but most of the time human beings hold themselves back more than they push forward, so I simplify it and say if you can imagine it, you can do it.