Here is a quote from Tenzin Wangyal Rinpoche (my favorite teacher) ;
"We grow up attaching ourselves to various beliefs, to a political party, a medical system, a religion, an opinion about how things should be. We pass through elementary school, high school, and maybe college, and in one sense every diploma is an award for developing a more sophisticated ignorance.
Education reinforces the habit of seeing the world through a certain lens. We can become an expert in an erroneous view, become very precise in our understanding, and relate to other experts. This can be the case also in philosophy, in which one learns detailed intellectual systems and develops the mind into a sharp instrument of inquiry. But until innate ignorance is penetrated, one is merely developing an acquired bias, not fundamental wisdom.
We become attached to even the smallest things: a particular brand of soap or our hair being cut in a certain fashion. On a grand scale, we develop religions, political systems, philosophies, psychologies, and sciences. But no one is born with the belief that it is wrong to eat beef or pork or that one philosophical system is right and the other in error or that this religion is true and that religion is false.
These must be learned. The allegiance to particular values is the result of cultural ignorance, but the propensity to accept limited views originates in the dualism that is the manifestation of innate ignorance.
This is not bad. It is just what is. Our attachments can lead to war but they also manifest as helpful technologies and different arts that are of great benefit to the world."