Practice kindness at all costs. Kindness makes you feel good about yourself as well as the people who receive your kindness. For what is our life with the human race if we cannot treat them with the decency that we all deserve.
There is no gain in treating people with contempt and disrespect and no pain in treating people with kindness.
There are many people who could learn this characteristic, and if they do, their lives will change for the better.