Let us examine a case where mutualistic conduct shows traits beyond the reach of selective love. I go to a shoemaker and ask for a pair of shoes. He hands me a pair, I pay his price, and carry them home. As I come to wear them, I find them admirably made. They give me greater comfort than I have ever had before and wear longer. The leather appears to have been selected with care, and every nail and stitch to have received attention. I return to their maker and say: “That was a remarkable pair of shoes. Did you make them specially for me? Perhaps you have known me before, have taken a fancy to me, and so have been willing to put yourself to all this trouble for my convenience. That is the way with love. It takes burdens on itself to relieve another.” How astonished the dealer would be at such talk! Would he not answer: “I had no thought of you, but I made the shoes as well as I could. It is my business.” “But,” I continue, “if you never know to whom your shoes will go, why take such pains?” “Because I mean to be true to my job and not shirk my part in the ongoing of the world. If I do bad work somebody, I don’t know who, will suffer. I mean to be a good shoemaker.” Here is professional responsibility. The man deals justly with his unknown public. And in such professional responsibility we pass from individual love to that noble public love which I have ventured to call Justice. Love remains, but it is now universal love, love freed from selection and without those restrictions of knowledge, circumstance, and temperament on which selection is based. No doubt in individual love there is an intimacy and a wealth of feeling which this case has not. But in it selfishness is also more pronounced. Knowing John well, I am confident that in joining my life with his, and with his only, we shall both be enriched. But the shoemaker carries his blessing to the unknown and joins himself rather with the public good. He gets his gain by giving gain to those whom he has never seen. It is true that the transaction may be partly explained on the grounds already noticed. An exchange has occurred by which buyer and seller have alike profited. But something more than calculation of profit has gone into these shoes. They would have sold readily with half the care. But this man respected business standards, was something more than a trader, gave not by equivalent measure, and was more concerned over possible danger to his customers than over extra labor for himself. That is the essence of professionalism. While frankly seeking mutual gain and declining anything one-sided, it abandons all thought of exact equivalence, keeping in the foreground standards of excellence approved by its group and looking to public service.