How to shut someone up; prior restraint via fear of death

"I have been pronounced by the Holy Office to be vehemently suspected of heresy,
that is to say,
of having held and believed that the Sun is the center of the world and immovable,
and that the earth is not the center and moves.

Therefore, desiring to remove from the minds of your Eminences, and of all faithful Christians, this vehement suspicion, justly conceived against me, with sincere heart and unfeigned faith I abjure, curse, and detest the aforesaid errors and heresies, … and I swear that in the future I will never again say or assert, verbally or in writing, anything that might furnish occasion for a similar suspicion regarding me."

– Galileo Galilei (1564 – 1642)