不存在所谓的质量问题。
The true genius shudders at incompleteness — and usually prefers silence to saying something which is not everything it ought to be.
Every atom has potential; it’s up to us to unlock it.
"النسيان هو النصر الوحيد على الموت."
百姓如果没有粮食，就不能供君王役使。所以，粮食不可不努力耕种，用度不可不厉行节俭。