The true measure of a forest's worth isn't in board feet of timber, but in centuries of ecological balance.

The only way to learn mathematics is to do mathematics.

激光技术的每一次突破都让我们更接近解决困扰科学家数十年的谜题。

"The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths."

可持续性不再是可选项；它是企业长期生存的必要条件。

出色表演的关键是倾听。不仅仅是说出你的台词，而是真正听到其他演员在说什么并真实地回应。