[PapaBear]

I've never met the man, but I've known many masters of many things. What they all have in common is the wisdom to continue growing. Your beginning is where you are and your ending has no end.
Your rhetorical "how much" question is actually a good one. If you took the combined knowledge of every member of this forum you might be able to write someone like him a respectable introduction... and nothing more. When you consider the vast knowledge and experience contained here, that is really saying something. Knowledge like his was passed to him from his elders, and then built upon. As much as he knows today, he is still a work in progress just as his finest tategoi... and so lil'dude, are you.