We got a hiking club in local university. One of it's founders, a dude in his 80s (I think..) is still coming to easier hikes. Not only coming, he frequently le

We got a hiking club in local university. One of it's founders, a dude in his 80s (I think..) is still coming to easier hikes. Not only coming, he frequently leads those hikes. People frequently ask him how long will he do this. His response is "I don't know. What I know is, once I stop hanging out with young people, I'll get old and die".