As I’ve been reading Kant’s works related to cosmopolitanism, I’ve ran into a lot of Latin quotations. This is the one that I like the best:
Tu ne cede malis, sed contra audentior ito.
Do not yield to misfortunes, but go and face them more boldly.
Virgil, Aeneid 6.96 (qtd. in the collection of Immanuel Kant’s writing titled Toward Perpetual Peace and Other Writings on Politics, Peace, and History).