From Voltaire's summary of the plot of Hamlet:
[Hamlet] declares that he has an inclination to quit Denmark, and go to school to Wittenberg. “Dear Hamlet,” says the queen, “do not go to school to Wittenberg; stay with us.” Hamlet answers that he will endeavor to obey her. Claudius is charmed at the answer; and orders that all of his court should go and drink, while the cannons were fired off; though gunpowder was not then invented.
- From "Plan of the Tragedy of Hamlet", Philosophical Letters (1733)