The aider and abettor

There was a small stove at that corner of the room which was nearest to the master's desk, and by it Nicholas sat down, so depressed and self-degraded by the consciousness of his position, that if death could have come upon him at that time, he would have been almost happy to meet it. The cruelty of which he had been an unwilling witness, the coarse and ruffianly behaviour of Squeers even in his best moods, the filthy place, the sights and sounds about him, all contributed to this state of feeling; but when he recollected that, being there as an assistant, he actually seemed—no matter what unhappy train of circumstances had brought him to that pass—to be the aider and abettor of a system which filled him with honest disgust and indignation, he loathed himself, and felt, for the moment, as though the mere consciousness of his present situation must, through all time to come, prevent his raising his head again. 

Nicholas Nickleby