When I was at university there was module that ran throughout the course called, 'Power, Oppression and Discrimination'. The module exposed me to many, many things that I had never given thought to and encouraged me to identify some of my own prejudices and biases. It gave me a much better understanding of how individuals, families, communities and societies can come to be discriminatory and oppressive (think Hitler's Germany or segregation in the USA).
I think I've been very fortunate to marry a man who is not only a deep thinker himself, but who also encourages others, including me, to really grapple with thoughts and ideas. We have many very interesting conversations when we're together or with our wider family, which we often are. Of course our parents and children are not all in agreement with each other, or with us, about everything, but our discussions are one of the joys of our family life.