A mathematician's work is never done; there are always new questions to explore and new mysteries to uncover.
数学家的工作永远不会完成;总有新的问题需要探索,新的谜团需要揭开。
My words in her mind: cold polished stones sinking through a quagmire.
人若能常保持清静之心,天地万物都会与之和谐共存。