One of the best pieces of advice I ever got was from a horse master. He told me to go slow to go fast. I think that applies to everything in life. We live as though there aren't enough hours in the day but if we do each thing calmly and carefully we will get it done quicker and with much less stress.
Be kind. It's worthwhile to make an effort to learn about other people and figure out what you might have in common with them. If you allow yourself to be somewhat curious - and if you get into the habit of doing that - it's the first step to being open minded and realizing that your points of view aren't totally opposite.