Although Hiroshi was a person who kept dedicating his loyalty to Aizu Domain until his death, he also had a strong spirit of defiance, and he learned Yomei-gaku (neo-Confuciasnism based on teaching of Wang Yangming) against Neo-Confucianism that was being studied at hangaku (school for samurai children) of Aizu Domain.
また、死ぬまで会津藩に忠誠を捧げた浩であるが、一方で非常に反骨心のある人物であり、会津藩の藩学であった朱子学は嫌いで陽明学を学んでいたという一面があった。