Today I treasure a letter home from my father. In the letter, my father wrote calmly: In life, you will encounter many things, some of which make people happy, and some of which make people sad, but no matter when and where you should do it, you will encounter many things. There is strength, happiness must be found by oneself, and troubles must be eliminated by oneself.
Source: "Learning to Strengthen the Country" Langfang Learning Platform
Author's Unit: Hebei Geological Surveying and Mapping Institute