Yuuki Yoshida, 80, divides his lifetime into four different "lives," but he has lived each of them by following one maxim: "Try to learn as if you were to live forever, and live as if you were to die tomorrow."
As a survivor of the 1945 atomic bombing of Hiroshima, the manager of a prosperous trucking company, a business consultant and now, in his "fourth life" — living in the Philippines newly remarried and starting fresh again — Yoshida sees perpetual learning as the only way to live.
Born in 1931 in Hiroshima, Yoshida was a victim of polio that left one leg physically weakened. He could not walk until shortly before entering elementary school, and instead crawled along on his hands and knees, making his hands "tough and strong."