I think he's right when he says that you need to want it as much as you want to breathe to be successful. But I think he's setting his audience up for failure by not pointing out that "success" is defined by that which you want as much as you want to breathe. When you find something that you want that much, going after it with all your being will come naturally. If you actually prefer sleep to whatever he calls "success", then maybe you're better off spending your time sleeping. How else are you going to find a dream to follow?