I am turning 68 in a few months and I try to do most of what he recommends. Enjoy younger family and acquaintances but also leave them to their lives, being satisfied to just enrich their lives materially and give them space. I had to think about the wording of his advice to persue ‘impersonal interests’ which for me is studying Go with a Korean Go master and learning those aspects of (general) artificial intelligence that most interest me, without much thought to practical considerations.