该句使用被动结构强调成功背后的艰苦过程。
Without stumbling, one cannot understand the hardships of the journey; without failure, one cannot grasp the taste of pain. A life devoid of setbacks is ultimately an incomplete one.
Sun Tzu emphasizes that military strategy should not be bound by rigid rules but should adapt to changing circumstances. The core principle is flexibility. If a commander can accurately grasp the shifts in enemy strength, friendly forces, and terrain, and make timely decisions, they can seize the initiative and achieve victory.
As the saying goes, "Only by enduring the bitterest hardships can one rise above others." Throughout history, All great achievers have been forged through hardship and exhaustion. For ordinary people, pursuing a sweet and happy life also requires perseverance and endurance. Merchants must endure the toil of travel; students must endure the loneliness and hardship of long years of study; and workers must endure the exhaustion of early mornings and late nights. The path of life is often strewn with thorns, and most things do not go as planned. Only through perseverance can one cultivate true ability and experience the joy of "sweetness after bitterness." In essence, endurance is the most fundamental skill in the art of living.
没有跌倒，就无法体会行路的艰辛；没有失败，就无法理解痛苦的滋味。缺少坎坷的人生，终究是不完美的。
《孙子兵法》强调，用兵作战应当不拘泥于常法，根据实际情况灵活应变。其核心在于灵活性。如果指挥者能准确把握敌我态势及地理环境的变化，并果断做出决策，便能掌握主动权，赢得胜利。
常言道：“吃得苦中苦，方为人上人。”历史上那些卓有成就的人物，无一不是在艰辛与劳累中磨砺出来的。对于普通人而言，若想追求幸福与甜蜜的生活，也离不开忍苦耐劳。经商者需忍受奔波之苦，求学者需忍受寒窗之苦与寂寞，劳动者则需忍受起早贪黑的辛劳。人生之路往往布满荆棘，世事也多有不如意，只有通过不断的磨炼，才能练就真本事，体会“苦尽甘来”的喜悦。可以说，忍受磨难是人生修行中最基本的一课。