This essay considers the bushidō (Way of the Warrior) discourse of the nationalist ideologue and theorist of Tōyō shisō (Oriental thought) Yasuoka Masahiro (1898–1983). As part of his Confucian nationalist perspective on jinkakushugi (‘personalism’), Yasuoka propagated self-cultivation that would enable Japanese to resist the supposedly debilitating effects of materialist ideologies and effete urban living upon their personalities. Relying on Tokugawa-era reflections on the bushi (warriors), late Meiji musings on bushidō and budō (‘martial arts’) and modern idealist responses to materialism, he exhorted Japanese men to embrace a self-sacrificial ‘samurai spirit’ and to act as exemplary ‘men of character’ (jinkakusha) loyal to the emperor-centered state. Articulated during the advent of universal male suffrage, Yasuoka’s bushidō discourse not only revealed the obvious expectations of wartime service to the empire but also expressed elite anxiety over the prospect of mass political participation in an age of radical ideologies. Concern for political stability was also prominent in his insistence that these enfranchised public men be supported by disenfranchised housebound women living a feminine analog to bushidō. Examining what Yasuoka called his ‘new discourse on bushidō philosophy’ (bushidō tetsugaku shinron) thus sheds considerable light on the modern reproduction and political implications of bushidō as national ideology, as masculine ideal, and as part of the pervasive prewar discussion of self-cultivation.