世界拥有技术 - 无论是现有的还是研究中的 - 可以在可持续的基础上养活100亿人口。
The world has the technology - either available or well advanced in the research pipeline - to feed on a sustainable basis a population of 10 billion people.
Sustainability is not an option; it's a responsibility we all share.
"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."
You are beautiful no matter what they say.
文学的衰落表明一个民族的衰落。这两者走下坡路的时间是齐头并进的。
