，乐而不淫，哀而不伤。《论语》
《关睢》这首诗，快乐而不过分，哀婉而不伤恸。
The best architecture is almost invisible.
We are never as happy or as unhappy as we imagine.
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.