In particular, the _Philosophische Briefe_, written about this period, exhibits Schiller in a new, and to us more interesting point of view. Julius and Raphael are the emblems of his own fears and his own hopes; their _Philosophic Letters_ unfold to us many a gloomy conflict that had passed in the secret chambers of their author's soul. Sceptical doubts on the most important of all subjects were natural to such an understanding as Schiller's; but his heart was not of a temper to rest satisfied with doubts; or to draw a sorry compensation for them from the pride of superior acuteness, or the vulgar pleasure of producing an effect on others by assailing their dearest and holiest persuasions. With him the question about the essence of our being was not a subject for shallow speculation, charitably named scientific; still less for vain jangling and polemical victories: it was a fearful mystery, which it concerned all the deepest sympathies and most sublime anticipations of his mind to have explained. It is no idle curiosity, but the shuddering voice of nature that asks: 'If our happiness depend on the harmonious play of the sensorium; if our conviction may waver with the beating of the pulse?' What Schiller's ultimate opinions on these points were, we are nowhere specially informed. That his heart was orthodox, that the whole universe was for him a temple, in which he offered up the continual sacrifice of devout adoration, his works and life bear noble testimony; yet, here and there, his fairest visions seem as if suddenly sicklied over with a pale cast of doubt; a withering shadow seems to flit across his soul, and chill it in his loftiest moods. The dark condition of the man who longs to believe and longs in vain, he can represent with a verisimilitude and touching beauty, which shows it to have been familiar to himself. Apart from their ingenuity, there is a certain severe pathos in some of these passages, which affects us with a peculiar emotion. The hero of another work is made to express himself in these terms: