The relationship between writing and calligraphy?

writing and calligraphy are necessary and sufficient conditions. Characters are the necessary support of calligraphy, and calligraphy is the aesthetic embodiment of characters. It can be said that calligraphy is not called calligraphy without words, but without calligraphy, words can still exist alone. Calligraphy is produced with the improvement of people's spirit and enjoyment of culture. Of course, from another level, it shows that calligraphy is also produced from the moment when words are produced.