In his mode of life at Jena, simplicity and uniformity were the most conspicuous qualities; the single excess which he admitted being that of zeal in the pursuits of literature, the sin which all his life had most easily beset him. His health had suffered much, and principally, it was thought, from the practice of composing by night: yet the charms of this practice were still too great for his self-denial; and, except in severe fits of sickness, he could not discontinue it. The highest, proudest pleasure of his mind was that glow of intellectual production, that 'fine frenzy,' which makes the poet, while it lasts, a new and nobler creature; exalting him into brighter regions, adorned by visions of magnificence and beauty, and delighting all his faculties by the intense consciousness of their exerted power. To enjoy this pleasure in perfection, the solitary stillness of night, diffusing its solemn influence over thought as well as earth and air, had at length in Schiller's case grown indispensable. For this purpose, accordingly, he was accustomed, in the present, as in former periods, to invert the common order of things: by day he read, refreshed himself with the aspect of nature, conversed or corresponded with his friends; but he wrote and studied in the night. And as his bodily feelings were too often those of languor and exhaustion, he adopted, in impatience of such mean impediments, the pernicious expedient of stimulants, which yield a momentary strength, only to waste our remaining fund of it more speedily and surely.