Hardship and Difficulties Yu Ruyu Cheng comes from: "Xi Ming" by Zhang Zai.

Original text of the Western Inscription: Northern Song Dynasty·Zhang Zai? [Song Dynasty]

Qian is called father and Kun is called mother; Therefore, the barrier between heaven and earth is my body; the commander-in-chief of heaven and earth is my nature. People are my compatriots; things are my friends.

The great king is the eldest son of my parents; his ministers are the ministers of the eldest son’s family. Respect the elderly, so they grow long; be kind, lonely, and weak, so they are young; sage, because they are virtuous; virtuous, because they are beautiful. All the people in the world who are tired, disabled, alone, widowed, and widowed are all those who have fallen victim to my brothers without complaining.

Protecting it at the right time is like the wings of a son; being happy and not worrying is pure filial piety. Those who violate one's moral character are called traitors, those who harm benevolence are called thieves, those who help evil are not talented, and those who practice one's behavior are only honourable.

If you are knowledgeable, you will be good at describing your affairs, and if you are poor, you will be able to carry out your ambitions. It is worth noting that having a leaky house is a sign of innocence, and cultivating one’s nature with intention is a sign of laziness. Evil decree wine, respect the uncle's care and support; educate talents, Yingfeng people's tin type. Not slacking off while working hard, this is Shun's merit; having nothing to escape but waiting to be cooked, this is Shen Sheng's respect. Those who feel what they feel and return to their fullness, Shenhu! The one who has the courage to obey orders is Birch.

Wealth, honor, and blessings will support my life; poverty, lowliness, sorrow, and mediocrity will help you succeed. If you save, I will be fine; if you don't, I will be happy.

Zhang Zai (1020-1077), courtesy name Zihou, was a thinker, educator and one of the founders of Neo-Confucianism in the Northern Song Dynasty. He is known as Mr. Hengqu in the world, and is honored as Zhang Zi. He is honored as a sage and is enshrined in the 38th west veranda of the Confucius Temple. His famous sayings of "establishing a mind for the heaven and earth, establishing a destiny for the people, inheriting the unique knowledge for the saints, and creating peace for all generations" were called "Four Sentences of Hengqu" by contemporary philosopher Feng Youlan.

Because of its concise words and grand meaning, it has been praised throughout the ages. In the tenth year of Xining (1077), Emperor Shenzong of the Song Dynasty, he died of illness in Lintong on his way home at the age of 58. Zhang Zai, Zhou Dunyi, Shao Yong, Cheng Yi and Cheng Hao are collectively known as the "Five Sons of the Northern Song Dynasty", and their works such as "Zhengmeng" and "Hengqu Yi Shuo" have been left in the world.