Well, I can assure you that I had no idea that was out there when I chose the new name for the blog.
How, after all these years, does the godfather of fitness do it? By balancing the brain with the beast…
Yep, pretty much. Yet, I rather like to think of it as a full embrace of your animal nature and a full embrace of your rational mind. 100% and 100%; 1+1=3. Balance implies dichotomy, and there is none. You are fully, 100% animal biologically and to the extent that you compromise that in any way, you'll suffer (and your mind along with).
But I'm sure I know what Jack means.
(HT: Mike OD at The IF Life)