1. Never boast about tomorrow. You don't know what will happen between now and then.
2. Let other people praise you — even strangers; never do it yourself.
3. The weight of stone and sand is nothing compared to the trouble that stupidity can cause.
4. Anger is cruel and destructive, but it is nothing compared to jealousy.
5. Better to correct someone openly than to let him think you don't care for him at all.
6. Friends mean well, even when they hurt you. But when an enemy puts an arm round your shoulder — watch out!