When the Tao is like running water, how can virtue be like dew and wind?

Yu Youren's book. Yu Youren is a native of Sanyuan, Shaanxi, an alumnus of Fudan University, a journalist, poet, calligrapher and politician. Tao is like running water, and virtue is like dew wind. This is what he said. From Youren's book, it means that following the basic norms should be as natural as flowing water, and personal accomplishment should be as gentle as dew and wind.