Confucianism, Buddhism and Taoism constitute the core of traditional Chinese thinking and culture, a well-defined, organized and interactive multi-cultural system with Confucianism as the backbone flanked by Buddhism and Taoism. The interactions among the three and those inside each provide the Chinese with a choice between philosophy and religion and between rationality and divinity, and a freedom between involvement and detachment, thus forming the essential mentality of the Mean and Calmness.