如果一个国家期望在国民无知的情况下却拥有自由，那么这种期望无论在历史上，还是未来都绝不会实现。如果我们打算抵御无知和捍卫自由，每位美国人都有责任了解一件公共事务的来龙去脉。

Every ounce of metal we produce carries with it the weight of our environmental commitments.

追求数学知识是一段永无止境的旅程，充满了无尽的好奇和惊奇。

I want to inspire people. I want someone to look at me and say, 'Because of you, I didn't give up.'

The future of work must be inclusive, or it will fail to harness the full potential of human capital.

农业创新不仅仅是技术问题，更是思维方式的转变。

未来属于那些明白行善与成功并不矛盾的人。