[3.] But what is, “let us go on unto perfection”? Let us henceforth proceed (he means) even to the very roof, that is, let us have the best life. For as in the case of the letters the Alpha involves the whole, and as the foundation, the whole building, so also does full assurance concerning the Faith involve purity of life. And without this it is not possible to be a Christian, as without foundations there can be no building; nor skill in literature without the letters. Still if one should be always going round about the letters, or if about the foundation, not about the building, he will never gain anything.