Mathematics is not a spectator sport; to understand it, one must engage with it actively.
数学不是一项观赏性运动;要理解它,必须积极参与其中。
海洋生态平衡比短期经济利益更重要,我们要有长远眼光。
你给予的越多,得到的就越多。
"The best investment you can make is in yourself."