"King Emeric's gift has thus played an important role in enabling us to live the monastic life, and it is a fitting sign of gratitude that we have been offering the Holy Sacrifice for him annually for the past 815 years."
(source: https://sancrucensis.wordpress.com/2019/07/10/king-emeric-of-hungary/ )
It seems to me like longtermists could learn something from people like this. (Maintaining a point of view for 800 years, both keeping the values aligned enough to do this and being around to be able to.)
(Also a short blog post by me occasioned by these monks about "being orthogonal to history" https://formulalessness.blogspot.com/2019/07/orthogonal-to-history.html )