Mencius - Book 7, Part 2, Chapter 24

Mencius said, 'For the mouth to desire sweet tastes, the eye to desire beautiful colors, the ear to desire pleasant sounds, the nose to desire fragrant odors, and the four limbs to desire ease and rest; these things are natural. But there is the appointment of Heaven in connection with them, and the superior man does not say of his pursuit of them, "It is my nature."

'The exercise of love between father and son, the observance of righteousness between sovereign and minister, the rules of ceremony between guest and host, the display of knowledge in recognizing the talented, and the fulfilling the heavenly course by the sage; these are the appointment of Heaven. But there is an adaptation of our nature for them. The superior man does not say, in reference to them, "It is the appointment of Heaven."'

~ James Legge translation via nothingistic.org ~

 Go here to read the introductory post to this serialized version of the Works of Mencius.