In dealing with the dead, if we treat them as if they were entirely dead, that would show a want of affection and should not be done; or, if we treat them as if they were entirely alive, that would show a want of wisdom and should not be done.
There are three degrees of filial piety. The highest is being a credit to our parents, the second is not disgracing them; the lowest is being able simply to support them.
When you serve your mother and father it is okay to try to correct them once in a while. But if you see that they are not going to listen to you, keep your respect for them and don't distance yourself from them. Work without complaining.