He pointed out how fatherly his conduct had been towards the nation, how unfilial the nation's conduct towards himself.
The perception that the children of working women are usually neglected and turn out to be unfilial should change.
The Buddha taught that killing is an ultimate act of being unfilial towards our parents and disrespectful towards our teachers and elders.
His half-brothers' unfilial behaviour spurred Louis the Pious to change his plans.