1. Confucius said: Learning without thinking leads to indifference; thinking without learning leads to peril.

The language comes from: "The Analects of Confucius·Wei Zheng" by Confucius in the Spring and Autumn and Warring States Periods

Translation: Confucius said: The difference of "learning" and the identity of "thinking" can only be separated. Confused, tired and without gain.

2. The organ of the heart is thinking, thinking is knowing, and not thinking is not possible.

From: "Mencius Gaozi" by Mencius during the Warring States Period

Translation: Mencius said: The function of the heart is to think. If you can think, you can get the true meaning of things. If you don't think, you can get the true meaning of things. Can't get it.

3. If you don’t think deeply, you can’t create the Tao. If you don’t think deeply, you will gain easily.

From: General Secretary Xi Jinping's "Speech at the Philosophy and Social Sciences Work Symposium"

4. Proficiency comes from diligence rather than playfulness, and success comes from thinking and failure from following.

The language comes from: "Jinxuejie" written by Han Yu.

Translation: Learning can only be mastered by hard work, but it will be wasted if you are playful; virtue can be formed by thinking, but it will be destroyed if you follow the crowd.

5. Read old books without getting tired of reading them a hundred times. If you read them carefully, you will know yourself.

From: "Send Off the Scholar Andun Returns to the West" written by Su Shi, a writer of the Northern Song Dynasty.

Translation: Don’t be afraid of trouble with classic books. Only after you have tasted them many times can you know the true meaning contained in them.