I am a psychotherapist. Every day I listen people. Sometimes - a few years the same. Sometimes - different. I listen and try to understand. And then I talk something in reply. And I listen again. I listen sometimes, how pairs talk. It is difficult. Sometimes I listen and look after how the whole groups of people talk. And something I answer. It is assumed that after it people, pairs and groups, change. Surprisingly, but it takes place actually. Far not always I I understand, due to what, although many years I study to do it.