When we are young we are apt to evolve friendships out of our imagination. We do not so much prove them as create them, according to the impulses and undisciplined generosities of our disposition. It is only time, here as elsewhere, that can teach us how much there is that is human about the best of friends. But how much may have been done, for better or for worse, before we realize that the angels have gone away only because they were never here? As we get older outside friendships count for less. Life fills with other interests, or it empties in a sense friendships can never fill. If we who are older have carried into the later years one or two, or two or three, well-laid, well-tested and useful friendships, let us be very thankful, and cherish them. They are pearls of great price, for no friends are like old friends, and as they drop off we have to make the best we can of acquaintances. It is when we are young that we have the genius for friendships; they are, indeed, a necessary part of our life. And whether or not it is much use to warn young people about the formation of friendships, the warning is seriously needed. Much will be determined by affinities and by mutual sympathies. You may have to sample many friendships before you find a friend. And while it is difficult, not to say impossible, to lay down rules where affinities are involved, one thing you can do, you can allow the moral instinct to decide, as it can decide, whether in the real interests of character a given friendship is worth cultivation. If you realize that you must surrender something of your better self to be the friend of a certain person, you will be almost sure to establish that friendship at your peril. It is far harder to save your life than it is to lose it, and the chances are, not that you will lift the friendship up to your level, but that it will pull you down to its own. These remarks on the general subject of personal friendship are warranted by its importance. But there is another aspect of it which, as a question of widespread and deep-seated influence, is even more important. And it is one that is too rarely touched in or out of the pulpit. There is something which begins with only an acquaintance, but it readily grows into more, and that more is supplied at a heavy cost to the individual and to the community.