It would take too long to explain the intimate alliance of contradictions in human nature which makes love itself wear at times the desperate shape of betrayal.  And perhaps there is no possible explanation.  Indulgence—­as somebody said—­is the most intelligent of all the virtues.  I venture to think that it is one of the least common, if not the most uncommon of all.  I would not imply by this that men are foolish—­or even most men.  Far from it.  The barber and the priest, backed by the whole opinion of the village, condemned justly the conduct of the ingenious hidalgo who, sallying forth from his native place, broke the head of the muleteer, put to death a flock of inoffensive sheep, and went through very doleful experiences in a certain stable.  God forbid that an unworthy churl should escape merited censure by hanging on to the stirrup-leather of the sublime caballero.  His was a very noble, a very unselfish fantasy, fit for nothing except to raise the envy of baser mortals.  But there is more than one aspect to the charm of that exalted and dangerous figure.  He, too, had his frailties.  After reading so many romances he desired naively to escape with his very body from the intolerable reality of things.  He wished to meet eye to eye the valorous giant Brandabarbaran, Lord of Arabia, whose armour is made of the skin of a dragon, and whose shield, strapped to his arm, is the gate of a fortified city.  O amiable and natural weakness!  O blessed simplicity of a gentle heart without guile!  Who would not succumb to such a consoling temptation?  Nevertheless it was a form of self-indulgence, and the ingenious hidalgo of La Mancha was not a good citizen.  The priest and the barber were not unreasonable in their strictures.  Without going so far as the old King Louis-Philippe, who used to say in his exile, “The people are never in fault”—­one may admit that there must be some righteousness in the assent of a whole village.  Mad!  Mad!  He who kept in pious meditation the ritual vigil-of-arms by the well of an inn and knelt reverently to be knighted at daybreak by the fat, sly rogue of a landlord, has come very near perfection.  He rides forth, his head encircled by a halo—­the patron saint of all lives spoiled or saved by the irresistible grace of imagination.  But he was not a good citizen.

Perhaps that and nothing else was meant by the well-remembered exclamation of my tutor.

It was in the jolly year 1873, the very last year in which I have had a jolly holiday.  There have been idle years afterwards, jolly enough in a way and not altogether without their lesson, but this year of which I speak was the year of my last schoolboy holiday.  There are other reasons why I should remember that year, but they are too long to state formally in this place.  Moreover they have nothing to do with that holiday.  What has to do with the holiday is that before the day on which the remark was made we had seen Vienna, the Upper Danube, Munich,