"And it's very difficult to get back beyond reputation, back to the real man, back to the sources, because a lot of the history we are taught is just packages of prejudice handed on from one generation to the next. And the package is never opened and examined. We just carry it unquestioningly and hand it on ourselves."
It's our work as rational, feeling beings to open those packages and examine them. We need to explore what's in our history, but we also need to decide whether we need it and whether it will help us to have it in our stored knowledge.