Bone is said to be cut, elephant is said to be consulted, jade is said to be carved, and stone is said to be polished; by exchanging and polishing, it becomes a treasure; a person's knowledge and knowledge can be achieved just like bones, elephants and jade are polished by exchanging lessons with each other.

One vigorous effort will weaken again and again, and it will be exhausted three times. When it is exhausted, I will be full, so I can overcome it.

During the Eastern Han Dynasty, a man named Le Yangzi went to a neighboring country to study and prepare to achieve something. cause. But after studying for less than a year, he dropped out and came back because he missed home. After returning home, the wife picked up a pair of scissors and cut off all the threads on the loom. Then she said: "Cloth is made up of threads. If you cut it from the middle, wouldn't all the previous efforts be in vain?" ?" Leyang understood what his wife meant when he heard this, and immediately said goodbye to his wife and returned to a neighboring country to continue his studies.

It wasn't until 7 years later that he returned home after completing his studies

It was freezing three feet, not a day of cold!

A drop of water can penetrate a stone, but it cannot be done in a day!