This sentence comes from "Ancient and Modern Wise Essays: Encouragement to Learning" written by Han Yu in the Tang Dynasty. This is his famous saying on academics, aiming to encourage people to read more and not be afraid of hardship. Only hard work can lead to success.

The meaning of this sentence is that if you want to successfully reach the top of the towering knowledge mountain, diligence is the only way to the top; if you want to swim in the boundless ocean of knowledge, be patient and try your best , A hard-working attitude towards learning will be a moving ship that can carry you to the other side of success.

The meaning of "The mountain of books has a road and diligence is the path":

The mountain of books has a road and diligence is the path aims to encourage people to read more and not be afraid of hardship. Only hard work can lead to success. Learning is a process of rushing through the sand, a process of turning ordinary things into magic, and it is also a process of continuous accumulation of wealth. Only continuous accumulation can achieve ultimate success.

If you take crossing the sea as your goal in life, you will inevitably encounter the test of crossing rivers, lakes, and rivers. As long as you cross rivers one after another, your mind will naturally become broader. The sea is not so far away.