The writer tries to discuss the relationship between “emotion” and “reason” from the perspective of comparing Chinese and western philosophies. Chinese philosophies typically value emotion, since emotion is humankind's most fundamental way of being. But the Chinese philosophies assert rather the unity of emotion and reason than emotionalism. Western philosophies also appreciate emotion, but they insist on the separation and confrontation between emotion and reason and highly respect the dominant power of reason. As a moral feeling, emotion is not completely subjective, personal or experiential. It comes from the “ever-generating principle” of the universe, related to teleological rationality. The unity of emotion and reason is rational. We can't be assured of the moral value of humankind until moral emotion is approved. Moral reason is based on moral emotion, or we can say that moral reason can't be realized without moral emotion. Meanwhile, emotion is the psychological foundation of parapsychology and religion. Actually emotion can be discussed hierarchically. The hierarchically higher emotion is associated with reason while the lower emotion is concerned with personal feelings and wishes. People need to cultivate emotion and achieve self-transcendence. What confines Chinese philosophies of emotion is the emphasis on teleological rationality rather than instrumental rationality. We need instrumental rationality in the process of modernization, but the issue of emotion is also important. What really matters is to make people teleological instead of instrumental.