Thefts never enrich; alms never impoverish; murder will speak out of stone walls. The least admixture of a lie-for example, the taint of vanity, the least attempt to make a good impression, a favorable appearance-will instantly vitiate the effect.
When you do nothing you feel overwhelmed and powerless. But when you get involved you feel the sense of hope and accomplishment that comes from knowing you are working to make things better.