" We may imagine that the mind houses a singular self, an essence of "I-ness," distinct from all other selves and consistent over time. But attend closely to your thoughts and you find they are thoroughly colonized by the thoughts of others, through language, culture, and mutual expectations. The answer to the question of what I am, or you are, requires some historical and geographical setting. "

― Barbara Ehrenreich , Natural Causes: An Epidemic of Wellness, the Certainty of Dying, and Killing Ourselves to Live Longer