1. Learning is like sailing against the current. If you don’t advance, you will retreat.

2. If you don’t play the piano for three days, your hands will grow thorns: If you don’t play the piano for three days, your hands will become as inflexible as if they had thorns. It is a metaphor that once you stop practicing, your skills will become rusty.

3. Fortune will survive, use will perish: Hour: often. The original refers to the iron needle that should be used frequently, otherwise it will rust and become useless. The latter refers to the technology and knowledge that will become more proficient and rich with use, and will become useless if not used. Rigidity and forgetfulness.

4. Not practicing for three days.

5. Since ancient times, people who have made great achievements in learning are inseparable from the word "hardship".

Intelligence comes from hard work, and genius comes from accumulation.

A person who is eager to learn but not diligent in asking questions is not a truly good scholar.

There are roads in the mountain of books, and diligence is the path, and there is no limit to the sea of ??learning, and hard work is the boat.

Jiushuzhanzhen: It means not participating in a battle for a long time. We often use this word when saying that a basketball player has not played for a long time.

The edge of a sword comes from sharpening, and the fragrance of plum blossoms comes from the bitter cold.