It will be ascribed to deep policy, when, in fact, it was only a casual excuse for laziness

From Boswell’s Life of Johnson (v.1 ~pg 185)

The Plan was addressed to Philip Dormer, Earl of Chesterfield, then one of his Majesty’s Principal Secretaries of State; a nobleman who was very ambitious of literary distinction, and who, upon being informed of the design, had expressed himself in terms very favourable to its success. There is, perhaps in every thing of any consequence, a secret history which it would be amusing to know, could we have it authentically communicated. Johnson told me, ‘Sir, the way in which the Plan of my Dictionary came to be inscribed to Lord Chesterfield, was this: I had neglected to write it by the time appointed. Dodsley suggested a desire to have it addressed to Lord Chesterfield. I laid hold of this as a pretext for delay, that it might be better done, and let Dodsley have his desire. I said to my friend, Dr. Bathurst, “Now if any good comes of my addressing to Lord Chesterfield, it will be ascribed to deep policy, when, in fact, it was only a casual excuse for laziness.”