¹ xìng 性: “human nature”
“What Heaven imparts to man is called human nature. To follow our nature is called the Way. Cultivating the Way is called education.” – Doctrine of the Mean, ch. 1, tr. Chan
² qíng 情: “feelings”
“Feeling parallel nature; they are nature when aroused.” – Chen Chun, Chen Chun’s Explanation of Terms 4:1, tr. Chan
³ xīn 心: “heartmind”
“The nature is the principle of the mind. Feelings are the movement of the nature. And the mind is the master of feelings and the nature.” – Zhu Xi, Collected Conversations of Master Zhu 5:55, tr. Chan
⁴ yì 意: “will”
“Those who wished to rectify their minds would first make their wills sincere.” – Great Learning, ch. 2, tr. Chan
⁵ dé 德: “virtue”
“In the operation of the Way, the endowment that things have received is called the virtue of Heaven.” – Chen Chun, Chen Chun’s Explanation of Terms 17:2, tr. Chan
⁶ cái 才: “capability”
“Capability means natural endowment and ability. Natural endowment refers to the raw material, the stuff that enables one to perform. Here we are talking about essence.” – Chen Chun, Chen Chun’s Explanation of Terms 5.1, tr. Chan modified