'Dr. Johnson related that he had once in a dream a contest of wit with some other person, and that he was very much mortified by imagining that' his opponent had the better of him. "Now," said he, "one may mark here the effect of sleep in weakening the power of reflection, for had not my judgment failed me, I should have seen that the wit of this supposed antagonist, by whose superiority I felt myself depressed, was as much furnished by me as that which I thought I had been uttering in my own character." ' - Life of Dr. Johnson.