The greatest threat to our planet is the belief that someone else will save it.
"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."
我不需要理由去善良。
The future of energy lies in a diversified mix that includes both traditional and renewable sources.
能源的未来在于包括传统能源和可再生能源在内的多样化组合。
我尝试从每种情况中学习，无论是积极的还是消极的。
Challenges are what make life interesting and overcoming them is what makes life meaningful.
You’ve got to have models in your head. And you’ve got to array your experience—both vicarious and direct—on this latticework of models. You may have noticed students who just try to remember and pound back what is remembered. Well, they fail in school and in life. You’ve got to hang experience on a latticework of models in your mind.