In a Station of the Metro
"In a Station of the Metro" is an Imagist poem by Ezra Pound published in April 1913 in the literary magazine Poetry. In the poem, Pound describes a moment in the underground metro station in Paris in 1912; he suggested that the faces of the individuals in the metro were best put into a poem not with a description but with an "equation".
Source: Wikipedia — In a Station of the Metro (CC BY-SA 4.0)