购买股票的最佳时机是它们不受欢迎的时候。
The best time to buy stocks is when they are out of favor.
实现任何有价值的事情的三个重要要素是:努力工作、坚持不懈和常识。
In mathematics, the journey from question to answer is often more enlightening than the answer itself.
采石业的创新不仅关乎机械,还关乎远见和可持续性。