Play your part creatively in all the struggles
Of men of your time, thereby
Helping, with the seriousness of study and the cheerfulness of knowledge
To turn the struggle into common experience and
Justice into a passion.
Source, in full
"Speech to Danish working-class actors on the art of observation" [Rede an dänische Arbeiterschauspieler über die Kunst der Beobachtung] (1934), from The Messingkauf Poems, published in Versuche 14 (1955); trans. John Willett in Poems, 1913-1956, p. 238