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数学不是一项观赏性运动;要理解它,必须积极参与其中。
Mathematics is not a spectator sport; to understand it, one must engage with it actively.
Grow old along with me! The best is yet to be, the last of life, for which the first was made.
Art is not a mirror to reflect reality, but a hammer to shape it.
有些鸟儿是关不住的,因为它们的羽翼太耀眼。
I'm fascinated by medicine because it's the line between life and death.