Educational famous poems, marking the author and poetic meaning

What you have learned on paper will eventually make you realize it, but you will definitely know that this matter must be carried out. ——Lu You

Ask him how clear he is? Come for living water from a source.

It is easier for a young person to learn than to become an old man. An inch of time cannot be taken lightly. ——Zhu Xi

Black-haired people don’t know how to study diligently early, white-haired people regret studying late. ——Yan Zhenqing

If you are young and don’t work hard, you will be sad when you are old. ——Changgexing

You will know the smallness of the mountains only when you enter the clouds, and you will know the depth of the sea only by diving.