As I had the honour and happiness of enjoying his friendship for upwards of twenty years; as I had the scheme of writing his life constantly in view; as he was well apprised of this circumstance, and from time to time obligingly satisfied my inquiries, by communicating to me the incidents of his early years; as I acquired a facility in recollecting, and was very assiduous in re-cording his conversation, of which the extraordinary vigour and vivacity constituted one of the first features of his character; and as I have spared no pains in obtaining materials concerning him, from every quarter where I could discover that they were to be found, and have been favoured with the most liberal communications by his friends; I flatter myself that few biographers have entered upon such a work as this, with more advantages; independent of literary abilities, in which I am not vain enough to compare myself with some great names who have gone before me in this kind of writing.
Instead of melting down my materials into one mass, and constantly speaking in my own person, by which I might have appeared to have more merit in the execution of the work, I have resolved to adopt and enlarge upon the excellent plan of Mr. Mason, in his Memoirs of Gray. Wherever narrative is necessary to explain, connect, and supply, I furnish it to the best of my abilities; but in the chronological series of Johnson's life, which I trace as distinctly as I can, year by year, I produce, wherever it is in my power, his own minutes, letters or conversation, being convinced that this mode is more lively, and will make my readers better acquainted with him, than even most of those were who actually knew him, but could know him only partially; whereas there is here an accumulation of intelligence from various points, by which his character is more fully understood and illustrated.
Indeed I cannot conceive a more perfect mode of writing any man's life, than not only relating all the most important, events of it in their order, but inter-weaving what he privately wrote, and said, and thought; by which mankind are enabled as it were to see him live, and to `live o'er each scene' with him, as he actually advanced through the several stages of his life. Had his other friends been as diligent and ardent as I was, he might have been almost entirely preserved. As it is, I will venture to say that he will be seen in this work more completely than any man who has ever yet lived.
And he will be seen as he really was; for I profess to write, not his panegyrick, which must be all praise, but his Life; which, great and good as he was, must not be supposed to be entirely perfect. To be as he was, is in-deed subject of panegyrick enough to any man in this state of being; but in every picture there should be shade as well as light, and when I delineate him without reserve, I do what he himself recommended, both by his precept and his example.
... I remain firm and confident in my opinion, that minute particulars are frequently characteristick, and always amusing, when they relate to a distinguished man. I am therefore exceedingly unwilling that any thing, however slight, which my illustrious friend thought it worth his while to express, with any degree of point, should perish.
Of one thing I am certain, that, considering how highly the small portion which we have of the table-talk and other anecdotes of our celebrated writers is valued, and how earnestly it is regretted that we have not more, I am justified in preserving rather too many of Johnson's sayings, than too few; especially as from the diversity of dispositions it cannot be known with certainty before-hand, whether what may seem trifling to some, and perhaps to the collector himself, may not be most agreeable to many; and the greater number that an author can please in any degree, the more pleasure does there arise to a benevolent mind.