Troilus and Criseyde

Troilus and Criseyde (Modern English: /ˈtrɔɪləs ən ˈkrɛsᵻdə/) is a poem by Geoffrey Chaucer which re-tells in Middle English the tragic story of the lovers Troilus and Criseyde set against a backdrop of war during the Siege of Troy. It was composed using rime royale and probably completed during the mid 1380s. Many Chaucer scholars regard it as the poet's finest work. As a finished long poem it is more self-contained than the better known but ultimately uncompleted Canterbury Tales. This poem is often considered the source of the phrase: "all good things must come to an end"