In 1743, Denis Diderot, later famed as a co-founder of the Encyclopédie, risked everything for love. After being imprisoned in a monastery by his father to prevent an “unsuitable” marriage, Diderot escaped through a window, trudged miles through rain to Paris, and wrote a desperate letter to his beloved, Anne-Antoinette Champion. In it, he confessed that his “life or death depends on [her] welcome.”

This episode reads Diderot’s letter in full (in English translation) and explores the circumstances of his clandestine wedding. The marriage took place in secret in Paris in November 1743, just after his thirtieth birthday when parental consent was no longer required.

More than a romantic anecdote, this story uncovers the drama of Enlightenment ideals colliding with family authority, and how vows of love and freedom can become life-defining acts.