过去是一个谜题,每一块都很重要。
It is the greatest good to the greatest number of people which is the measure of right and wrong.
The key to sustainable development is to balance economic growth and environmental protection.
我们建造了太多的墙,而没有建造足够的桥梁。
I don't let the past define my future.
The text is a tissue of quotations drawn from the innumerable centres of culture.