Jo Gwang-jo
Seonbi were expected to possess the Confucian virtues of filial piety and loyalty to the king, disdain power, wealth and private interest, and be ready to lay down their life in order to remain faithful to their principles and maintain their integrity. They venerated scholars such as Jeong Mong-ju (who died for his fidelity to Goryeo), the six martyred ministers (who refused to accept Sejo's usurpation of the throne), and Jo Gwang-jo (a reformer who died trying to transform Joseon into an ideal Confucian society) as embodiments of the seonbi spirit and as examples to follow.