Does anybody believe in the old saying that “what I don’t know can’t hurt me”?  The reality is that we are hurt every day by what we do not know and, in turn, we hurt others.  It is both a shattering and humbling revelation when we come to know what we did not know and realise how so many of our decisions and choices were unconsciously made. Scientists have finally accepted that we have an unconscious and they agree that only a small fraction of what we do and say is consciously chosen.