That I've lived to this age is probably due to my effort to sum up my personal experience of the past decades and draw a lesson from it. I've never been weighed down by CARES.

我能活到现在，大概是总结了过去几十年的经验教训，卸下了思想包袱，不生气、不悲观。

youdao

Summary: In the society of agriculture, knowledge is only the tool used to sum up and come down experience.

提要：在农业社会，知识只是农业社会时代经济的总结工具与经验流传工具。

youdao

It is necessary for you to sum up your experience constantly and improve the efficiency of your work.

这是为你总结自己的经验、不断提高你的工作效率的必要。

youdao

White-washed mansions no higher than four floors, students from the respected Kiev-Mohyla Academy and street markets amid decrepit Soviet homes sum up the whole experience of being in Kiev: a bit eclectic, somewhat Soviet and still struggling between West and East.

BBC: Weekend in Kiev