Wang Xizhi's calligraphy is known as "the best running script in the world". His brushwork is changeable, his handwriting is smooth and natural, full of vitality and vigor. In the exhibition, I saw his Preface to the Lanting Pavilion, which can be said to be the treasure of China's calligraphy. Wang Xizhi's pen and ink are incisive, and each word has its own unique form and charm.