Who can provide some famous aphorisms about learning, mainly from the four books, and indicate the source, preferably deep, not common?

Diligence is good at diligence, barren is good at playing; What is done in thinking is destroyed in following-Han Yu

Learning without thinking is useless, thinking without learning is dangerous-Confucius

Knowing is not as good as being kind, and being kind is not as good as being happy-Confucius.

A threesome requires a teacher. Choose the good and follow it, and change the bad-Confucius.

Prospering in poetry, standing in ceremony and enjoying-Confucius

Don't do to others what you don't want them to do to you-Confucius

Reading breaks thousands of books, writing is like a god-Du Fu

There are three ways to read, namely, heart, eyes and mouth-Zhu Xi.

Taking learning first and reading as the foundation-Ouyang Xiu

Reading thousands of books and Taking Wan Li Road-Liu Yi

Black hair doesn't know how to study hard early, but white hair regrets learning late-Yan Zhenqing

In the book, people who are as affectionate as ever, every blind date is mixed with sadness and joy-Yu Qian

Books or medicine, good reading can cure fools-Liu Xiang

Young people don't work hard, but old people are sad. Changge Xing/The Long Ballad

Don't be idle, grow old together-Yue Fei

Strive to know the words of the world and aspire to read the books of the world-Su Shi

Birds flap their wings before flying high, and people learn before making progress-Li Kuchan.

If you are determined to be true, you must study hard-Ruan Yuan

Not cold, not sober, not quiet, not far-reaching-Zhuge Liang

Don't Do Small Evil, Don't Do Small Good —— Chen Shou's History of the Three Kingdoms

Recite 300 Tang poems, even if you can't write —— Sun Zhu's Preface to 300 Tang Poems

If you use books, you hate them less, and if things are difficult, you can understand them-Lu You

Ask how clear the canal is, because there is flowing water at the source-Zhu

I can never get tired of reading old books, but I won't know until I read them carefully-Su Shi

Pu Songling, a bookworm, works hard, while an artist is skilled.

Read it a hundred times and you will understand what you mean-the history of the Three Kingdoms.

A journey of a thousand miles begins with a single step-Laozi

It's a long way to go in Xiu Yuan, and I will go up and down-Qu Yuan.

Appreciating strange writing, solving doubts and explaining meanings-Tao Yuanming

The method of reading is gradual, familiar and thoughtful-Zhu

My life is limited, but so is my knowledge-Zhuangzi.

If you don't learn, you will be wide, if you don't think, you will be useless, and you will achieve nothing-Zhuge Liang

It's useless not to peck jade; People who don't learn don't know —— The Book of Rites