In the Analects, Confucius says: “In serving one’s father and mother, remonstrate gently. If they show that they will not follow the advice, remain respectful and do not oppose them. Work hard and do not complain.” (事父母几谏，见志不从，又敬不违，劳而不怨。)
The Handian dictionary defines 几谏 as “to remonstrate in a tactful, roundabout way.”