Philosphical Calligraphy

I found this video writing standard script with good brushwork.   The phrase being written is

 清遊暢詩懷

This is the second part of the expression

 道學通正事,清遊暢詩懷

Dàoxué tōng zhèngshì, qīngyóu chàng shī huái

The whole expression means  Study Confucian principles to understand the political affairs;  Leisurely travel lets you write poetry to your heart’s content.