I was a Cub Scout / Webelo / Boy Scout throughout my formative years and have yet to hear a better definition of a "man" then the qualities listed in the Scout Law.
A Scout (Man) is : TRUSTWORTHY; LOYAL; HELPFUL; FRIENDLY; COURTEOUS; KIND; OBEDIENT; CHEERFUL; THRIFTY; BRAVE; CLEAN; and REVERENT.
OK, I've never been obedient and am not known for my reverence. But the rest has served me well as a blueprint for manhood.
Can't believe I'm quoting the Scout Law here, but I can't improve on it. Go easy on me, guys!

Mike