An insidious person has forty minds, while forty honest people have only one mind. (Uygur)
The cloth is sewn with thread, the wood is glued, and the heart is connected with sincerity. (Tibetan)
To buy a horse, you should try your steps, and to judge people by their eyes. (Luoba)
Speak honestly and act fairly. (Tibetan)
adultery is the end of all evil, and honesty is the source of all good. (Mongolian)