The Religion of the Samurai: A Study of Zen Philosophy and Discipline in China and Japan on Mencius: “The first of these opinions was proposed by a most reputed Confucianist scholar, Mencius, and his followers, and is still adhered to by the majority of the Japanese and the Chinese Confucianists. Mencius thought it as natural for man to do good as it is for the grass to be green.”
The Autobiography of Fukuzawa Yukichi on Mencius: “While the others were reading the Classic of Poetry or the Book of Documents, I was doing recitation of Mencius. [auto-translated]”
Shibue Chūsai on Mencius: “Chūsai also said: "The best part of Mencius is in the chapter on Exhausting the Mind." [auto-translated]”