The principle of not losing out in life: be altruistic in words, self-interested in actions; superficially agreeable, make decisions independently. Be humble in character, efficient in work; calm in demeanor, meticulous in planning. Be gentle in attitude, firm in principles; easygoing on the surface, clear in goals. Be low-key externally, diligent internally; appear weak on the surface, exert effort at critical moments. Be accommodating in speech, seize the right timing; appear modest, act decisively.