欲望的纪律是性格的背景。
The discipline of desire is the background of character.
宁可选择自由的贫困，也不愿选择奴隶般的富裕。
A great editor knows when to hold and when to fold.
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.
"Un libro es una conversación entre el autor y el lector a través del tiempo."