It is my experience that no one, in the course of conversation, can fail to give themselves away sooner or later. Everyone has an irresistible urge to talk about themselves.
One who is caught in thought loses one's original nature. All he knows are words and descriptions. When he sees the actual thing, he fails to perceive it.
The European single currency is bound to fail, economically, politically and indeed socially, though the timing, occasion and full consequences are all necessarily still unclear.