According to the Li Chi, the three requirements on how to Tao are chih, jen, and yung.
Now and Zen, The Way Revisited.
Chih- (wisdom) it is practiced by studying traditions and appreciating their beneficial effects on yourself and rest of society. In addition, it means to be continually honest about your own needs, abilities, and motives and paying attention to how your actions influence other people.
Jen – (compassion) a fellow-feeling for other people. Human-bigheartedness.
Yung – (fortitude) involves working hard to carry out your actions thoroughly and maintain good attitude constantly throughout life.