That is an interesting quote given that at the very end of the supposedly sole email he sent in his life he talks about how he feels whenever he is sending e-mails.
"As a beginner I always feel that when i send off any e-mail, it is going to vanish into the ether and i would hate to have that happen with everything i know."
Yes, Buffets long-term shtick has been "grandfatherly simpleton". He intentionally plays that up for maximum effect.
What I find interesting is that now Gates is aping Buffet in that regard. Gates now exclusively appears wearing sweaters and speaking in simple truisms. Selling vaccines must require it?