Tolerance is based on the principle of equality, and respect for the others. It is different from patience, forgiveness, and indulgence. The most common phenomenon of intolerance in the history of man is shown in religious intolerance; the source of racial, communal and political intolerance can be traced to differences in beliefs. The causes of intolerance are, differences of meaning structure, ignorance, sloth and selfishness. From the anthropological point of view, the source of intolerance is fear of "the limitation of life," and, the power which can help to overcome such fear, is love. Universal love is the indiscriminating love that transcends time and space, familial relationships, and social positions and the way to practice it is to "see the other as oneself, and to love the other as oneself," and its ultimate foundation is "the will of Heaven." Tolerance is based on the self-transcendence and the principle of equality, and is also based finally on a transcendent ground. Thus the "universal love" of MoZi and the western "Spirit of Tolerance" complement each other; tolerance being the expression of universal love and universal love the motivation of tolerance.