"We're going on a bear hunt. We're going to catch a big one. What a beautiful day! We're not scared."

Innovation in mining technology isn't optional—it's our responsibility to the next generation.

Programmers are not to be measured by their ingenuity and their logic but by the completeness of their case analysis.

数学中最重要的是理解概念，而不仅仅是记忆公式。

经济周期的福利成本并非周期本身，而是个体无法随时间平滑消费的能力。