It turned out, on inquiry, that only Vibbard was of age; his friend being quick in study, had entered college early, and nearly two years stood between him and his majority; so that, if their contract was to be binding, they would have to defer it for that length of time. I was prepared for their disappointment; but Silverthorn, after an instant's reflection, seemed quite satisfied. As they were going, he hurried back, leaving his friend out of ear-shot, and explained himself,-- "You see, Vibbard has an idea that I shall never succeed in life,--financially, that is,--and so he wants to fasten this agreement on me, to prevent pride or anything making me back out, you know, by and by. But I like all the better to have it left just as it is for a while, so that if we should ever put it on paper he needn't feel that he had hurried into the thing too rashly." "I understand," I replied; and I pressed his hand warmly, for his frankness and genuineness had pleased me. When they were gone, I pondered several minutes on the novelty and boyish naivete of the whole proceeding, and found myself a good deal refreshed by the sincerity of the two young fellows and their fine confidence in the perfectibility of the future. It seemed to me, the more I thought of it, that I could hold on to this scheme of theirs as a help to myself in retaining a healthy freshness of spirit. "At any rate," I said, "I won't allow myself to go adrift into cynicism as long as they keep faith with their ideal." From time to time during the two years, I encountered the friends casually; and I remember having a fancy that their faces--which of course altered somewhat, as they matured--were acquiring a kind of likeness; or, rather, were _exchanging_ expressions. Silverthorn's grew rounder and brightened a degree in color; his glance had less momentum in it; he looked more commonplace and contented. On the other hand, Vibbard, through mental exertion (for he had lately been studying hard) and the society of his junior, had modified the inertia of his own expression. The strength of his features began to be mingled with gentleness. But this I recalled only at a later time. Near the end of the two years' limit, when the boon companions were on the eve of taking their degrees, I found that another element had come into their affairs.