有时最简单的问题会引出最深奥的理论。
I don't think you can ever really know who you are until you're tested.
You have to believe in yourself when no one else does.
根据问题出现的背景,代数实部可以接受从负无穷到正无穷的所有数值。
True success is not about fame or money, but about the impact you have on others.