Sun Tzu and dated his lifetime to 544–496 BC. Modern scholars accepting his historicity nonetheless place the existing text of "The Art of War" in the later Warring States period based upon its style of composition and its descriptions of warfare. Traditional accounts state that the general's descendant Sun Bin also wrote a treatise on military tactics, also titled "The Art of War". Since both Sun Wu and Sun Bin were referred to as Sun Tzu in classical Chinese texts, some historians believed them identical prior to the rediscovery of Sun Bin's treatise in 1972. Sun Tzu's work has been praised and
Tzu Chi Chi International Medical Association (TIMA) and also the Tzu Chi Collegiate Youth Association (Tzu Ching) (慈濟大專青年聯誼會 (慈青)), Tzu Chi volunteers and relief workers are mostly recognizable worldwide by their blue and white uniforms called, in , "lántiān báiyún", ( lit. 'blue sky, white clouds'). The foundation's work includes medical aid, disaster relief, and environmental work such as recycling. While Tzu Chi has a policy of being secular in its humanitarian work, Dharma teachings are often integrated into its practices for volunteers. Cheng Yen is considered to be one of the "Four Heavenly Kings" of Taiwanese Buddhism, and Tzu Chi itself