Borrowing from the Bard?

[ELCore]

Lincoln did not often quote Shakespeare in his writings and speeches, but he liked to recite favorite passages from the plays in private, and once wrote about Macbeth in a letter to actor James Hackett. He enjoyed going to the theater, too, which in his day often meant Shakespeare.

Lincoln wrote to Hackett twice in 1863, on August 17th and November 2nd. The latter is the source of my signature here.