Don't worry about the world coming to an end today. It's already tomorrow in Australia.
这是最好的时代,这是最坏的时代。
I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.  
我们需要将贫困视为一系列相互关联的问题,而不是一个单一的问题,这些问题需要量身定制的解决方案。
I’ve never been a natural, all I do is try, try, try.