1、公平交易，童叟无欺。
Fair dealing, no child deceives.
2、货卖一张皮。
The goods sell a piece of leather.
3、走三家，到三家，货比三家不力巴。
Walk three houses, go three houses, compare goods with three families.
4、满天要价，着地还钱。
All day long asking price, land to pay back money.
5、有钱难买不卖。
Money is hard to buy or not to sell.