20多岁时，人格的变化比人生中任何其他时期都要大。
Personality changes more during your 20s than at any other time in life.
I don't complain, I don't justify myself, I accept what comes and keep working.
【译文】 子夏说：“每天都学到些新东西，每月都不忘所学会的东西，就算好学了。”
听到别人指出自己的过错，就感到高兴。
实现明天的唯一限制是我们今天的疑虑。