Explanation of the Name and Definition
To learn Tai Chi Chuan, it is first necesary to learn to invest in loss.
Para aprender Tai Chi Chuan primero es necesario aprender a invertir en perdidas.
Cheng Man Ching
Cheng Tzu's Thirteen Treatises on T'ai Chi Ch'uan
(Teatrise One: Explanation of the Name and Definition.pg.22)