Do not associate or become friends with the following four people: stupid fellows; jealous people; cowards; and liars. Stupid fellows wish to help you get some benefits, but they will bring you a loss. Jealous people will take from you, but will not give anything in return. Cowards will run away when you need help. They will even run away from their own parents when they need help. Liars may often tell the truth, but no one would believe them.”