If God had made eleven commandments, the eleventh might have been Thou Shalt Not Whine.
We live in a world that can, at times, be more pessimistic than optimistic. Don't surrender to the negativity and whining from those around you. Be a positive example to everyone you encounter today.
Do everything without complaining or arguing, so that you may become blameless and pure, children of God without fault in a crooked and depraved generation, in which you shine like stars in the universe