Authors:

Why, sir, Sherry is dull, naturally dull; but it must have taken him a great deal of pains to become what we now see him. Such an excess of stupidity, Sir, is not in Nature.

On Thomas Sheridan, in James Boswell 'The Life of Samuel Johnson' (1791) vol. 1, p. 453 (28 July 1763)
Why, sir, Sherry is dull, naturally dull; but it must have taken him a great deal of pains to become what we now see him. Such an excess of stupidity, Sir, is not in Nature.