After retiring, I was a little bored with nothing to do and got fat. I thought, if a 60-year-old metabolic fat man, after five years, can get to Mount Everest, that would be very exciting.

Just keep challenging yourself. I think that's a great thing.

After retiring, I was a little bored with nothing to do and got fat. I thought, if a 60-year-old metabolic fat man, after five years, can get to Mount Everest, that would be very exciting.

If you wish strongly, have courage and endurance, then you can get to the summit of your dream.

I never imagined I could make it to the top of Mount Everest at age 80. This is the world's best feeling, although I'm totally exhausted. Even at 80, I can still do quite well.

I want to ski down Mount Cho Oyu in the Himalayas when I am 85, descending from a height of 8,201 meters.