One shouldn't take pride in anything before they were born
Well, first things first I am taking "reasonable self-esteem : confidence and satisfaction in oneself" as the definition of pride in here. Otherwise if we say taking pride is simply taking pleasure, I don't have problem with that. There is no way someone has contributed to anything that happened in this world before they were born. If their ancestors did something amazing 500 years ago, thats their pride. They may admire them as much as they want, take their lessons and try being like them if they want to, however just because they are your ancestors doesn't mean it defines them or makes them any more valuable as a person.
I am not against collective pride, say, if someone from my country has a great achievment in sports or science, there is a fair chance I had some indirect contribution (That can be because I contributed to the funding which lead to that achievment). Though I still think I still shouldn't take much pride in it because my contribution to it was indirect.
But thats because there is a fair room to argue I had some form of contribution to that situation, But say, 300 years ago, some great scientists emerged that happens to belong to the same heritage as me. So what? I didn't do it, so it has no relevance besides being a point of history and something to learn from.
Same goes for shame, if my grandfather has done something horrible before I was born, thats again, just a fact of history and has nothing to do with me. I don't have to feel any shame over whatever he did. I can acknowledge what he did was horrible, but that won't bring any shame for me, after all, its not my doing. #conversation source