The following version of this poem was used to create this guide: Donne, John. “No Man is an Island.” Geoff Johnson. https://web.cs.dal.ca/~johnston/poetry/island.html.

Note that all parenthetical citations within the guide refer to the lines of the poem from which the quotations are taken.

John Donne was born into a Catholic family in the early 1570s, at a time when the practice of Catholicism was illegal in England. Donne's father died when he was only four, leaving his mother to raise him and his siblings alone. He studied at Oxford and Cambridge from a young age, though he was not allowed to graduate due to his religion. Donne spent much of his inheritance on travel as a young man, and then secretly married Anne More. Her father's objections led to a period of poverty for the couple, and Donne was even briefly imprisoned. Anne died giving birth to their twelfth child, leading to a period of profound depression during which Donne contemplated suicide. Donne also began questioning his Catholic faith, and eventually joined the Church of England and even spoke out against Catholicism. He was then able to become a member of parliament and, eventually, Dean of St. Paul's. He died in 1631, having authored many poems on the themes of desire, love, and faith.

"No Man is an Island" is a brief section of prose, which critics have generally considered a poem in its own right. As such, it has been restructured into lines of poetry by various publications, though it originally contained no line breaks and was instead presented as part of the larger prose work, Devotions Upon Emergent Occasions. It addresses the theme of humanity's interconnection in the face of mortality. It is famous for containing two of the most-quoted lines in English.