世界是一本书,不旅行的人只读了一页。
The world is a book, and those who do not travel read only one page.
To me programming is more than an important practical art. It is also a gigantic undertaking in the foundations of knowledge.
如果明智地使用,技术可以成为可持续森林管理的最大盟友。
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.