追梦的代价
The future of energy is not either/or - it's about finding the right balance between traditional and new energy sources.
生活就是当你忙于制定其他计划时所发生的一切。
We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.
The true test of a mathematical idea is its ability to inspire further thought.
我试图在每个项目中找到我称之为"缺失环节"的东西。
The truth is not always what we want to hear, but it is what we need to know.