There is a gratifying secret entwined with this injunction to serve mankind. Whoever gives himself in such service will inevitably receive a boomerang-like return one day when others will display a readiness to serve him. For karma is a divine law which brings back to him whatever he has given forth. The area and depth of his own service will mark the area and depth of that which mankind will extend toward him. Only the form of it will be different because this will depend both on prevailing circumstances and his own subconscious or conscious desire. It may take only a mental or emotional form. The moral of this is that the wise altruist loses nothing in the end by his altruism, although the foolish altruist may lose much as the karmic consequence of his foolishness.
-- Notebooks Category 20: What Is Philosophy? > Chapter 4 : Its Realization Beyond Ecstasy > # 307
