《汉书·传·王莽传上》
应该改定正月朔日，改变车马、服饰的颜色，更改祭祀用的牲畜的毛色，更换旗帜之类的标志，重定器具的形制。
其改正朔，易服色，变牺牲，殊徽帜，异器制。
We should revise the first day of the first month, change the colors of the carriages and horses, clothing, and the fur colors of the livestock used for sacrifices, change signs such as flags, and redefine the shape of appliances.