Of old, the rise on Yin was due to I Chih, who formerly served the Hsia; the Chou came power through Lu Yu, a servant of the Yin
I Chih was minister of Hsia who went over to the Yin.
Lu Wang was a minister of Yun who went over to the Chou
Sun Tzu - The Art of War - Employment of Secret Agent
Pada Jaman Dulu, munculnya Yin karena I Chih, yang sebelumnya melayani Hsia; Chou berkuasa melalui Lu Yu, seorang pelayan dari Yin
I Chih adalah menteri Hsia yang pergi ke Yin.
Lu Wang Yun pelayan yang pergi ke Chou.
Seni Perang Sun Tzu