In practically every religious tradition and practice, giving of oneself is a key step on the path to spiritual fulfillment. Or, as Einstein put it, “only a life lived for others is the life worth while.” Since Einstein, theoretical physicists have been trying to come up with a “theory of everything” that would explain our entire physical world by reconciling general relativity with quantum physics. If there were an analogous theory of everything in the study of our emotional universe, empathy and giving would be at the center of it. Modern science has overwhelmingly confirmed the wisdom of
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