What is the proverb used to study hard and practice calligraphy since childhood and eventually become a calligrapher?

Rome was not built in a day!

Ten years of cold window, nobody cares, famous all over the world!

Nothing in the world is difficult for one who sets his mind to it. As long as you work hard, the iron pestle is ground into a needle.

One day, I will ride the long wind, break through the huge waves, raise my muddy sails and cross the deep sea!

Where there is a will, there is a way. Cross the rubicon, it must be Chu.

Everything comes to him who waits, and another 3,000 armor will swallow Wu.