Although Naosuke had never told his teacher Sokken that he himself had a part in the construction of the warship, Sokken learned of this fact later and slapped his knee in admiration for Naosuke's personality.
猶介は、その軍艦は自分が建造に携わったことを、師である息軒に一言も語らなかったのであるが、息軒は後日その事実を知り、太息して猶介の人となりに膝を打ったという。