Mencius - Book 4, Part 2, Chapter 30A

The disciple Kung-tû said, 'Throughout the whole kingdom everybody pronounces K'wang Chang unfilial. But you, Master, keep company with him, and moreover treat him with politeness. I venture to ask why you do so.'

Mencius replied, 'There are five things which are pronounced in the common usage of the age to be unfilial. The first is laziness in the use of one's four limbs, without attending to the nourishment of his parents. The second is gambling and chess-playing, and being fond of wine, without attending to the nourishment of his parents. The third is being fond of goods and money, and selfishly attached to his wife and children, without attending to the nourishment of his parents. The fourth is following the desires of one's ears and eyes, so as to bring his parents to disgrace. The fifth is being fond of bravery, fighting and quarreling so as to endanger his parents. Is Chang guilty of any one of these things?
~ James Legge translation via nothingistic.org ~

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