I don't know the man myself, but maybe he didn't have to learn anything but has always been that way, already. He was evidently ready to put in for the long haul and has kept a steady pace at it no matter what's been thrown at him. Like I've said on other threads, Trump chose well.
I don’t know him either LC, and you may be right that it was a nature rather than nurture thing with him all along.
Either way, your last sentence is spot on, FRiend !