There are two old mottos that we should always remember.One is that a piece of garbage that is two hundred years old is still a piece of garbage.

• 中国古董种类繁多，其中以古玉、瓷器、书画、青铜器号称四大项，其他尚有文房、竹器、木器(傢俱)、牙器、金铜器、佛像、鼻烟壶、印石、刺绣等等。