Going to a fitness club for physical exercises is my favorite pastime. I go to a gym in Kyoto about three times a week and spend around two hours there each time, doing muscle training and fast walking.

When I was a visiting professor at the University of Illinois in the United States for three years from 1975, I frequented its swimming pool. That university was fully equipped with physical exercise facilities, like other American universities.

After returning to Japan late in 1978, I found a newly opened fitness club in Kyoto. I registered with it as a member and started swimming there once or twice a week. After new training facilities were added, my exercise shifted from swimming to muscle training and fast walking.