Choose an iron pestle and grind it into a needle.

Everyone should have heard the famous aphorism about persistence, "As long as you work hard, an iron pestle can be ground into a needle." This is a warning to each of us that we will encounter many problems and difficulties in life, and no matter what you do, it will not be smooth sailing.

But we must not shrink back in the face of difficulties, we must face them bravely, and we must not give up halfway. As long as we work hard and persevere in anything we do, we will always reach the desired destination.