I quite agree with the last sentence of the story: no, I know best that 6400 meters above sea level is the highest point of climbing the cliff, and I don't feel sorry at all. Yes, this is an important philosophy of life. A person's life lies in not leaving a flaw for the last time. Life is to keep going and never look back, so as to find the highest point of life, so as to strive to reach the highest point of your life without flaws.
I admire this mountaineer, I admire his simple answers, and I believe he likes his own answers and practices. If I were you, I would do the same. If I am at the end of my life, I may end my life and do something sensational in the world.
The effort is negligible. If it seeps into the soil, it will disappear, and all efforts can converge into a river, but it is not endless. Just like us, we are always weak in the face of many difficulties, but when we work hard to do one thing, we can create countless miracles and countless peaks in life.