According to the analects how shld a gentlemen conduct himself? And how should a son treat his parents

According to the Analects, a son should treat his parents gently and with respect.

"In serving his parents, a son may remonstrate with them, but gently; when he sees that they are not disposed to acquiesce, he should show increased reverence but not give up; and, should they punish him, he ought not to murmur."

I will need to look further for the first part of your question.