The verses describing the exchange of ideas and collisions are:

1. A gentleman’s learning must be renewed day by day, and he who is renewed day by day will make progress. Those who do not make progress every day will inevitably retreat. There is no one who does not advance but does not retreat.

——﹝Northern Song Dynasty﹞Cheng Hao and Cheng Yi's "Er Cheng Ji·Henan Cheng Family's Posthumous Letters·Volume 25"

Explanation: A gentleman must study every day. New progress, daily progress means making progress every day. If you don't make progress every day, you will definitely regress every day. There is never anything that is neither progress nor regression.

2. Thousands of sails pass by the side of the sunken boat, and thousands of trees spring in front of the diseased tree.

——[Tang Dynasty] Liu Yuxi's "Rewarding Lotte at the First Banquet in Yangzhou"

Explanation: On the side of the sunken boat, thousands of sails competed. It means that old things perish and new things grow.

3. There is no fear of changes in nature, no law for ancestors, and no sympathy for human words.

——"History of the Song Dynasty: Biography of Wang Anshi"

Explanation: There is no need to be afraid of changes in celestial phenomena, there is no need to follow the rules of ancestors, and there is no need to be afraid of human public opinion.

4. Green, taken from blue and green from blue. Ice, for which water is colder than water.

——[Pre-Qin Dynasty] "Xunzi Encouraging Learning"

5. It is only conservative, so it will always be old; it is only progressive, so it is new every day.

——Liang Qichao's "Young China Theory"

Explanation: Because it is conservative, it is always outdated; because it is enterprising, it is updated every day.

6. It is new every day, new every day, and new every day.

——"Book of Rites University"

Explanation: If you can update yourself in one day, you should update yourself every day and keep updating every day.

7. The waves behind the Yangtze River push the waves in front, and the new people in the world drive out the old ones.

——"Zengguang Xianwen"

Explanation: The back waves of the Yangtze River push the front waves forward step by step, and the new people in the world are replaced from generation to generation following the footsteps of their predecessors.

8. Work hard all day long and keep pace with the times.

——[Pre-Qin] "Book of Changes and Qian Classical Classics"

Explanation: Do things carefully every day, strive for self-improvement, run with the sun and the moon, and never stop.