1. Because the mountain is there.

2. For climbing experience, the most difficult thing is to choose the moment of retreat.

3. The most irrational thing is to choose mountain climbing, so I must be rational in everything during mountaineering.

4. Outdoors is not a career, but a short time in life. But the traces are hard to disperse for a long time. Life changes because of "outdoors", and destiny becomes clear because of "outdoors".