The power of abstraction is that it allows us to ignore irrelevant details and focus on the essential aspects of a problem.
抽象的力量在于它允许我们忽略不相关的细节，专注于问题的本质方面。
循环经济不是一种选择——对于希望在未来十年蓬勃发展的行业来说，这是唯一的前进方向。
The future of democracy depends on the ability of democratic societies to reform themselves.