Particularly does this appear in the early history of Christianity. Every shade of heresy, every kind of mixture of Christian and other elements was tried and found advocates; but after a greater or less success they all disappeared, leaving only the Church standing. For the Church had known how to combine those dogmas and practices in which the imagination of the time, and to a great extent of all times, might find fitting expression. Imaginative significance was the touchstone of orthodoxy; tradition itself was tested by this standard. By this standard the canon of Scripture was fixed, so as neither to exclude the Old Testament, which the pure metaphysicians would have rejected, nor to accept every gospel that circulated under the name of an apostle, and which might please a wonder-loving and detail-loving piety. By the same criterion the ritual was composed, the dogma developed, the nature of Christ defined, the sacraments and discipline of the Church regulated. The result was a comprehensive system where, under the shadow of a great epic, which expanded and interpreted the history of mankind from the Creation to the Day of Doom, a place was found for as many religious instincts and as many religious traditions as possible; while at the same time the dialectic proficiency of an age that inherited the discipline of Greek philosophy, introduced into the system a great consistency and a great metaphysical subtlety. Time mellowed and expanded these dogmas, bringing them into relation with the needs of a multiform piety; a justification was found both for asceticism and for a virtuous naturalism, both for contemplation and for action; and thus it became possible for the Church to insinuate her sanctions and her spirit into the motives of men, and to embody the religion of many nations during many ages.