This was the advice of Imam Abu Hanifa to one of his students who went to Basra to teach people there the fiqh of Kufa and the opinion of it’s scholars.
“Know that if you harm ten people, you will have enemies, even if they are your mothers and fathers, but if you do good to ten people who are not your relatives, they will become like mothers and fathers to you.
“If you enter Basra and oppose people, elevate yourself over them, vaunt your knowledge among them, and hold yourself aloof from their company, you will shun them and they will shun you; you will curse them and they will curse you; you will consider them misguided and they will think you misguided and an innovator. Ignominy will attach itself to you and us, and you will have to flee from them. This is not an option. It is not an intelligent person who is unsociable to the one who is unsociable until Allah shows him a way out.
“When you go to Basra, the people will receive you, visit you and acknowledge your due, so put each person in his proper position. Honour the people of honor, esteem the people of knowledge and respect the shyookh. Be kind to the young and draw near to the common people.