It is by no means certain that our individual personality is the single inhabitant of these our corporeal frames… We all do things both awake and asleep which surprise us. Perhaps we have cotenants in this house we live in. – Oliver Wendell Holmes
Temperament lies behind mood; behind will, lies the fate of character. Then behind both, the influence of family the tyranny of culture; and finally the power of climate and environment; and we are free, only to the extent we rise above these. – John Burroughs