Nothing so hinders us in what we are doing as to be longing after something else; in so doing, we leave off tilling our own field, to drive the plough through our neighbor’s land, where we must not look to reap a harvest; and this is mere waste of time. If our thoughts and hopes are elsewhere, it is impossible for us to set our faces steadily towards the work required of us.
–Saint Francis de Sales (1567-1622)