A drop of water wears away a stone, which comes from an idiom of Lu. Pinyin Shu d and shí chu ā n.
Drop: drop. Wear: Pierce. Water keeps dripping down, and it can drip through the stone for a long time.
Metaphor as long as perseverance, subtle forces can do very difficult things. It is also a metaphor that as long as you have perseverance, continuous efforts and perseverance, things are likely to succeed.
Zhang Guai's tooth was given a double ninth festival order (the name of the ancient county), and an official took out the money, depending on the fact that there was a coin (copper coin) under the scarf (headscarf) beside his temples as the money in the treasury. Lovely Cliff ordered the staff, and was even more furious (angry): "He Zudao, is it a staff for me?" You can stab me, but you can't cut me! "The strange cliff auxiliary pen judges the cloud:" One yuan a day, 1,000 yuan a day, a rope sawed off, a stone fell through! "Take the sword to cut it. (selected from He Lu)
Extended data:
Zhang Guaiya is a county magistrate of Chongyang. At that time, it was not uncommon for soldiers to abuse generals and small officials to invade officers. Zhang Guaiya thinks this is an abnormal thing and is determined to rectify this phenomenon. One day, he patrolled around the yamen. Suddenly, he saw a small official coming out of the vault in a panic. Zhang Chengya stopped the little official and found a penny hidden under his turban. Zhang Guaiyan came forward to ask, only to know that it was stolen from the vault. He took the little official back to the hall and ordered torture.
The little official was unconvinced: "A penny is nothing! You can only hit me, not kill me! " Zhang Guaiya was furious and sentenced him, "One yuan a day, 1,000 yuan a day. If a rope is sawed off, a stone will fall through." Zhang Guaiya beheaded the petty official in class (to punish this behavior).
References:
Drops of water pierce the stone (idiom) _ Baidu Encyclopedia