Power is the relation of a given person to other persons, in which the more this person expresses opinions, theories and justifications of the collective action the less is his participation in that action.
The preamble of thought, the transition through which it passes from the unconscious to the conscious, is action. Only so much do I know, as I have lived. Instantly we know whose words are loaded with life, and whose not.
Let us not forget that the reasons for human actions are usually incalculably more complex and diverse than we tend to explain them later, and are seldom clearly manifest.