There are two things which are more precious than any other thing you give to someone. These are your time and your generosity.
Be kind whenever possible, it is always possible.
The most precious thing you can give someone is your time. Because when you are giving them your time, you are giving them a portion of your life that you will never get back.
Keep these things always in your mind and try to give both or at least one of them to others.
We often behave selfishly. So for our own sake, talk with everyone politely. Because what we give to others is returned back to us. 😉