The "Zhang Gong" mentioned in this sentence refers to Sean, a famous politician and strategist in the history of China. Sean was a figure in the late Qin Dynasty and early Han Dynasty. He once held an important position under Liu Bang, advising Liu Bang and helping him to establish the Han Dynasty. One of the characteristics of Sean is that he can endure unpleasant things, keep calm and patient in the face of difficulties, and finally made great achievements.
Therefore, the phrase "endure it, endure it, learn from others sincerely, and benefit later" emphasizes the importance of patience and waiting, telling us to learn to endure and wait for opportunities when encountering difficulties and setbacks, so as to achieve greater achievements in life.