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教学最重要的部分是教授什么是知识。
The most important part of teaching is to teach what it is to know.
自信不是天生的,是慢慢培养出来的。
所以根基树立不牢的人,不要期望有茂盛的枝叶。
I was not born blind, I became blind at the age of 12, but I never felt like a victim.
"We are all apprentices in a craft where no one becomes a master."