I now saw that, even with the despised Mrs Boswell, I had need to exchange forgiveness; since, against the evils which she had inflicted on me, I had to balance a scorn even more galling than injury. Of the injustice of this scorn I became sensible, when I considered that it was directed less against her faults than her understanding; less against the baseness of her means than the insignificance of her ends; since what was at once the excuse and the mitigation of her vices formed the only reason why they were less endurable to me than the craft and the cruelty of politicians and conquerors. When I remembered that a few hours of sickness had sufficed to reduce me in intellect far below even the despised Mrs Boswell; that a derangement of the animal frame, so minute as to baffle human search, might blot the rarest genius from the scale of moral being; while I shrunk from the harrowing ravings of creatures who could once reason and reflect like myself, I felt the force of the warning which forbids the wise to 'glory in his wisdom.' I admitted as a principle what I had formerly owned as an opinion, that the true glory of man consists not in the ingenuity by which he builds systems, or unlocks the secrets of nature, or guides the opinions of a wondering world; but in that capacity of knowing, loving, and serving God, of which all are by nature equally destitute, and which all are equally and freely invited to receive. The reflections of those few days it would require months to record. They furnished indeed my sole business, devotion my sole pleasure. My cell contained no object to divert my attention; and the stated returns of the keeper were the only varieties of my condition. My strength, however, gradually returned. I was able to rise from my bed, and to walk, if the size of my apartment had admitted of walking.[19] It may well be believed that I counted the hours of my captivity, and I did not fail to remind the keeper daily of his promise. It was not till the day preceding that which he had fixed for my liberation, that I discovered any sign of an intention to retract. 'To-morrow I shall breathe the air of freedom,' said I to him exultingly, while I was taking my humble repast. 'I am sure you have air enough where you are,' returned the man. 'Oh but you may well imagine how a prisoner longs for liberty!' 'You are no more a prisoner than any body else that is not well. I am sure, though I were to let you out, you are not fit to go about yet.' 'Though you were to----Oh Heaven! you do not mean to detain me still! You will keep your promise with me!' 'Oh yes,' said the man, with that voice of horrible soothing which made my blood run cold; 'never fear, you shall get out to-morrow;' and, regardless of my endeavours to detain him, he instantly left me.