No man demands what he desires; each man demands what he fancies he can get. Soon people forget what the man really wanted first; and after a successful and vigorous political life, he forgets it himself. The whole is an extravagant riot of second bests, a pandemonium of pis-aller. Now this sort of pliability does not merely prevent any heroic consistency, it also prevents any really practical compromise. One can only find the middle distance between two points if the two points will stand still. We may make an arrangement between two litigants who cannot both get what they want; but not if they will not even tell us what they want.
Source: What's Wrong with the World