Perhaps the most memorable martial arts contest Liu has ever taken part in was with a Japanese named Ota Tokusaburo, who had a good command of knife and sword, and defiantly challenged the Chinese people in combat.
他認為「過手」是精益求精，增加個人見識經歷的最好方法。把日本劍道比下去抗戰以前，天津市有一個日本人，名叫太田德三郎，精通劈刀和劍術，曾公開向國人挑戰。