没有丑陋的爱,也没有英俊的监狱。
Sustainability is not a choice, it is a responsibility.
Writing is a way of talking without being interrupted.
The essence of mathematics lies in its freedom.
反过来,始终反过来:把情况或问题颠倒过来,从反面看。
The text is a tissue of quotations drawn from the innumerable centres of culture.