His mind still for a time continued much interested in his plan for the church of the Free and Easy. We find among his papers that he decided that candidates for admission should, after a careful examination, to ascertain that their creed was, to have no creed, and that their faith was, to abjure all faith, be subject to a probation of thirteen weeks. It seems that no candidate ever applied for admission. There were no apostles to wander abroad proclaiming the new gospel. Increasing business absorbed Franklin's time, and the new church was forgotten. The sole motive which Franklin urged to inspire to action, was self-interest. "You should be honest," he would say, "because it is politic. You abstain from vice for the same reason that you should not drink poison, for it will hurt you." In the enforcement of these views he writes, "It was my design to explain and enforce this doctrine, _that vicious actions are not hurtful because they are forbidden, but forbidden because they are hurtful_. It was, therefore, every one's interest to be virtuous who wished to be happy in this world. And I should from this circumstance (there being always in the world a number of rich merchants, nobility, states and princes, who have need of honest instruments for the management of their affairs, and such being so rare) have endeavored to convince young persons that no qualities are so likely to make a poor man's fortune as those of probity and integrity." It may be doubted whether such considerations ever made a truly good man. Virtue must be loved for its own sake. Vice must be deserted for its inherent baseness, even though it may bring a great reward. Franklin, in the prosecution of his studies, devoted himself to French, Spanish, Italian, and even to Latin. In all these he became a proficient. His mind was wonderfully prompt in the acquisition of knowledge. He could hardly have devoted himself more assiduously and successfully to these studies, had some good angel whispered in the ear of the young printer the astounding intelligence, "You are yet to be the ambassador of the United States to European courts. You are to appear in those glittering assemblages as the equal of the highest noble; and are to enjoy the hospitalities of kings and queens. Familiarity with these languages, and the intellectual culture you are thus acquiring will be of more value to you than mines of gold." This remarkable man prized all branches of knowledge; and seemed to excel in all. He devoted much attention to music. With much skill he played upon the harp, the guitar, the violin, and the violincello.