轧棉机的发明纯属偶然;那时我还很年轻,非常贫穷,对我来说从中实现一些价值是一个重要的目标。
唯一把我们和动物区分开的是我们装饰自己的能力。
数学不仅仅是关于数字、方程、计算或算法:它是关于理解的。
The purpose of government is to help those who cannot help themselves.
The best leaders are those who listen more than they speak, and act with both vision and humility.
The future of petrochemicals lies in sustainability and efficiency.