He declared that she was congenitally incapable of forming a single letter worthy of the least of Milton’s words; but she persisted; and again he suddenly threw himself into the task of teaching her with a combination of stormy intensity, concentrated patience, and occasional bursts of interesting disquisition on the beauty and nobility, the august mission and destiny, of human handwriting.
There are no more uses of "persist" in the play.
Show samples from other sources
The child persisted in asking questions despite my obvious desire to be left alone.
We expect the conditions to persist into next year.