We do not succeed in changing things according to our desire,
but gradually our desire changes.  The situation that we hoped
to change because it was intolerable becomes unimportant.
We have not managed to surmount the obstacle, as we were
absolutely determined to do, but life has taken us around it, led
us past it, and then if we turn around to gaze at the remote past,
we can barely catch sight of it, so imperceptible has it become.

Marcel Proust