Concerning falconry, one of his hobbies, Ryotaro SHIBA wrote in "Hasha no Ie" that 'He might have been the first person in Japan who had the knowledge that physical exercise is good for health.'
また趣味の一つとされる鷹狩りに関して、司馬遼太郎は「運動が健康にいい事を知った日本で初めての人物かも知れない」と『覇王の家』の中で述べている。