Read it through once

None need tell me that there are defects and imperfections in the work. I am well aware of the fact, but could not remedy them without re-writing the whole, and that was impracticable under the circumstances. Critics need not trouble themselves about its defects as a literary production, as I lay no claim to merit on that ground. Having been actively engaged in the practice of an arduous and perplexing profession for the last twenty-five years, I am aware that my qualifications for authorship must be somewhat defective. I was moreover forced to write, when my corporeal system was exhausted, and my mental powers oppressed by a complication of diseases. There are not many, I conceive, who will find any difficulty in clearly comprehending the ideas I intended to convey; if so, my object is accomplished.