The furious spirit of Luther, the effect of temper and enthusiasm, has been forcibly attacked (Bossuet, Hist. des Variations des Eglises Protestantes, livre i. p. 20-36) and feebly defended (Seckendorf, Comment. de Lutheranismo, especially l. i. No. 78, p. 120, and l. iii. No. 122, p. 556).