某些城市人工制品的永久性赋予了它们纪念碑的品质。
人渴时,一滴水就像甘露一样甜美;人醉后,再添酒还不如不添的好。
黄金法则就是没有黄金法则。
Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.