If we just worry about the big picture, we are powerless. So my secret is to start right away doing whatever little work I can do. I try to give joy to one person in the morning, and remove the suffering of one person in the afternoon. If you and your friends do not despise the small work, a million people will remove a lot of suffering.
The wiser one is, the quieter one is, for the truly wise one knows, "I know nothing except that I must listen and through listening learn to speak and act. "