People say you can't have peace without a war, but on the contrary they say they don't support war. You can not, ever achieve happiness from focusing on suffering, you have to change your perspective. World peace starts with Inner peace.
~ Mark Ryan
You can't please everyone, but I've always felt you cannot ultimately lose if you give everything you try 110%. You'll always learn something useful, even from a failure, that can be applied to the next challenge or project.