A sense of duty is just love of one's duty.

翻译：乐其天然而知其命数，所以无所忧愁。

真正的幸福是自己找到的。

最优秀的采石场不仅提取价值，更通过再生创造价值。

The AdS/CFT correspondence is a powerful tool that bridges the gap between quantum field theory and gravity, offering insights into the nature of spacetime itself.