Man is never given the chance to do everything he wants, but equally, he is never denied the chance to act at all. Everything is always between these two extremes and, most of the time, one can do more than one supposes. One cannot, however, act in the past or move forward in time, and such impossibilities often embarrass. Such impossibilities, in fact, can only constrain, and until one learns to despise them, one doesn’t value the much, even the surplus, that one can take advantage of.