Fred Baldwin found this on a Twitter feed. Yoshida Kenkō was a Japanese author and Buddhist monk. His most famous work is Tsurezuregusa (Essays in Idleness), one of the most studied works of medieval Japanese literature. Kenko wrote during the Muromachi and Kamakura periods.
American Go E-Journal
Go Spotting: Yoshida Kenkō
Thursday January 11, 2018