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没有所谓的 "准时 "之说。你要么迟到,要么提前。你选。
真正的数学家始终是学生,永远在学习。
There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.
"There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false."
用户不是上帝,用户是朋友。