When there's something you can do that will make a positive contribution, then by all means do it. When your actions will do nothing other than prolong an unfortunate impasse, learn to let it go and let it be.

There are things you can change. And there are things you cannot change.

Embrace what you can change with positive, persistent effort. Embrace what you cannot change with peaceful, enlightened acceptance.

Put your energy into pursuits that will bring value. Choose not to waste that energy fighting destructive battles that do nothing more than satisfy your ego.

There is profound beauty both in what you can do and in what you cannot do. Learn to see the value in it all.