They have in common deserving appreciation of their path’s integrity.
A young sociology grad (I guess) from Norway engaged seriously with a posting I did at the Facebook/Habermas Page, so I gave an evening to replying thoughtfully: His confusions portended emergence of important differentiations by his own engagement! I don’t find error in that; I find emerging self-actualization. So, I portrayed us in shared engagement.
An old scholar of Heidegger’s work—“an octogenerian,” he calls himself—invited discussion of a chapter of his long-ago published book, uploaded to his academia.edu page.