It means: "When you are frustrated, you should lead an honest and clean life and cultivate your personal character, and when you succeed, you can make the world like this."
Mencius wholeheartedly was written by Mencius, a thinker, politician and educator in the Warring States Period. Mencius was a master of Confucianism in the mid-Warring States period. Mingke. Yu Zi, a native of Zou County, Shandong Province. Politically, Mencius advocated that law was king and benevolent government was practiced. Theoretically, he admired Confucius and opposed Yang Zhu and Mo Zhai. He advocated benevolent government, put forward the people-oriented thought of "valuing the people but neglecting the monarch", and traveled to Qi, Song, Teng, Wei, Lu and other countries to follow the example of Confucius to promote his own political views.