Let us now resume the connected series of temple symbolism. At the building of the temple, the stones having been thus prepared by the workmen of the lowest degree (the Apprentices, as we now call them, the aspirants of the ancient Mysteries), we are informed that they were transported to the site of the edifice on Mount Moriah, and were there placed in the hands of another class of workmen, who are now technically called the Fellow Crafts, and who correspond to the Mystes, or those who had received the second degree of the ancient Mysteries. At this stage of the operative work more extensive and important labors were to be performed, and accordingly a greater amount of skill and knowledge was required of those to whom these labors were intrusted. The stones, having been prepared by the Apprentices[60] (for hereafter, in speaking of the workmen of the temple, I shall use the equivalent appellations of the more modern Masons), were now to be deposited in their destined places in the building, and the massive walls were to be erected. For these purposes implements of a higher and more complicated character than the gauge and gavel were necessary. The _square_ was required to fit the joints with sufficient accuracy, the _level_ to run the courses in a horizontal line, and the _plumb_ to erect the whole with due regard to perfect perpendicularity. This portion of the labor finds its symbolism in the second degree of the speculative science, and in applying this symbolism we still continue to refer to the idea of erecting a spiritual temple in the heart. The necessary preparations, then, having been made in the first degree, the lessons having been received by which the aspirant is taught to commence the labor of life with the purification of the heart, as a Fellow Craft he continues the task by cultivating those virtues which give form and impression to the character, as well adapted stones give shape and stability to the building. And hence the "working tools" of the Fellow Craft are referred, in their symbolic application, to those virtues. In the alphabet of symbolism, we find the square, the level, and the plumb appropriated to this second degree. The square is a symbol denoting morality. It teaches us to apply the unerring principles of moral science to every action of our lives, to see that all the motives and results of our conduct shall coincide with the dictates of divine justice, and that all our thoughts, words, and deeds shall harmoniously conspire, like the well-adjusted and rightly-squared joints of an edifice, to produce a smooth, unbroken life of virtue.