1. Reading and learning is to build your own thoughts and knowledge with the help of others' thoughts and knowledge.

2. The adopted son is not a messenger; Teach hard to read first. Couplet collection

3. The grass is low and the golden city is dew, and the Yumen is windy. Grass is low and dew is low, and Yumen is under the wind. Southern dynasties? Liang? Fan Yun's other poems. Low grass refers to withered and drooping grass. Jincheng: the name of an ancient county, between Yuzhong, Gansu and Xining, Qinghai. Under the wood: the leaves are withered and falling. Yumen: In the west of Dunhuang, Gansu. The cold dew in Jincheng and the autumn wind in Yumen withered the vegetation in the frontier. These two sentences can be used to describe the autumn colors in the northwest. Fan Yun, a writer in the Southern Dynasties, Bieshi

4. Knowing is knowing, not knowing is not knowing, and knowing is also.

Old age has so many flaws and stupidity that it is easy to be laughed at. The best harvest an old man can get is the kindness and care of his family. Command and awe are no longer his weapons. -Montaigne

6. It is better to plow as often as Yutang. As smart as Yutang, it is better to plow regularly. Southern and Northern Dynasties? Jia Sixie's Qi Yao Min Shu? Preface: The founder of Xia Dynasty managed water and made contributions to the people. T: The founder of Shang Dynasty. It is not enough to have a clever mind, but also to have two hands to work. Northern Wei agronomist Jia Sixie "Qi Yao Min Shu? foreword

7. Food is the life of the people and the wealth of the country. Food is the life of all people and the wealth of the country. North Korea? Wei? Jia Sixie's Qi Yao Min Shu? Miscellaneous remarks. Food is the life of the people in the world and the treasure of the country. Food is the most important thing for people. Food is an indispensable thing for human survival. China has a fine tradition of cherishing food since ancient times, and these two sentences are still cautionary aphorisms. Northern Wei agronomist Jia Sixie "Qi Yao Min Shu? Miscellaneous remarks