Dr. Johnson obligingly proposed to carry me to see Islam, a romantick scene, now belonging to a family of the name of Port, but formerly the seat of the Congreves.  I suppose it is well described in some of the Tours.  Johnson described it distinctly and vividly, at which I could not but express to him my wonder; because, though my eyes, as he observed, were better than his, I could not by any means equal him in representing visible objects.  I said, the difference between us in this respect was as that between a man who has a bad instrument, but plays well on it, and a man who has a good instrument, on which he can play very imperfectly.

I recollect a very fine amphitheatre, surrounded with hills covered with woods, and walks neatly formed along the side of a rocky steep, on the quarter next the house with recesses under projections of rock, overshadowed with trees; in one of which recesses, we were told, Congreve wrote his Old Bachelor.  We viewed a remarkable natural curiosity at Islam; two rivers bursting near each other from the rock, not from immediate springs, but after having run for many miles under ground.  Plott, in his History of Staffordshire, gives an account of this curiosity; but Johnson would not believe it, though we had the attestation of the gardener, who said, he had put in corks, where the river Manyfold sinks into the ground, and had catched them in a net, placed before one of the openings where the water bursts out.  Indeed, such subterraneous courses of water are found in various parts of our globe.

Talking of Dr. Johnson’s unwillingness to believe extraordinary things I ventured to say, ’Sir, you come near Hume’s argument against miracles, “That it is more probable witnesses should lie, or be mistaken, than that they should happen.”  Johnson.  ’Why, Sir, Hume, taking the proposition simply, is right.  But the Christian revelation is not proved by the miracles alone, but as connected with prophecies, and with the doctrines in confirmation of which the miracles were wrought.’

In the evening, a gentleman-farmer, who was on a visit at Dr. Taylor’s, attempted to dispute with Johnson in favour of Mungo Campbell, who shot Alexander, Earl of Eglintoune, upon his having fallen, when retreating from his Lordship, who he believed was about to seize his gun, as he had threatened to do.  He said, he should have done just as Campbell did.  Johnson.  ’Whoever would do as Campbell did, deserves to be hanged; not that I could, as a juryman, have found him legally guilty of murder; but I am glad they found means to convict him.’  The gentleman-farmer said, ’A poor man has as much honour as a rich man; and Campbell had that to defend.’  Johnson exclaimed, ‘A poor man has no honour.’  The English yeoman, not dismayed, proceeded:  ’Lord Eglintoune was a damned fool to run on upon Campbell, after being warned that Campbell would shoot him if he did.’  Johnson, who could not bear any thing like swearing, angrily replied, ’He was not a damned fool:  he only thought too well of Campbell.  He did not believe Campbell would be such a damned scoundrel, as to do so damned a thing.’  His emphasis on damned, accompanied with frowning looks, reproved his opponent’s want of decorum in his presence.