検索キーワード： "Simon Jacobs" 人間関係

A. J. Jacobs has received some strange emails over the years, but this note was perhaps the strangest: "You don't know me, but I'm your eighth cousin. And we have over 80,000 relatives of yours in our database." That's enough family members to fill Madison Square Garden four times over. Who are these people, A. J. wondered, and how do I find them? So began Jacobs' three-year adventure to help build the biggest family tree in history.

Author A.J. Jacobs discovers that his coffee - and every other item in our lives - would not be possible without hundreds of people we usually take for granted: farmers, chemists, artists, presidents, truckers, mechanics, biologists, miners, smugglers, and goatherds. By thanking these people face-to-face, Jacobs finds some much-needed brightness in his life. Gratitude does not come naturally to Jacobs, but he sets off on the journey on a dare from his son. And by the end, it’s clear to him that scientific research on gratitude is true. Gratitude’s benefits are legion.