Never yell at each other unless the house is on fire.
If one of you has to win an argument, let it be your mate.
If you have to criticize, do it lovingly.
Never bring up mistakes in the past.
Neglect the whole world rather than each other.
Never go to sleep with an argument unsettled.
At least once every day, try to say one kind compliment or word.
When you have done something wrong, be ready to admit it.
It takes two to make a quarrel and the one in the wrong is the one who does the most talking.