最重要的是我认为我们每个人都必须亲自想明白，为什么学习这些知识不是一种对时间的浪费。
The important thing is to understand why it was not a waste of time, something I think we all eventually figure out for ourselves.
youdao
浪费我的生活是一种罪恶。
To waste my life would be a sin.
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