"Always true to the truth, no matter what, But never scornful of those who have to lie."

--- C.P. Cavafy, lines in Thermopylae, transl. David Ferry, in Poetry Magazine, vol. 1999, no. 4 (January 2012), p. 292

From the poem (second of three stanzas):

Compassionate, available to pity;

Generous if they’re rich, but generous too,

Doing whatever they can, if they are poor;

Always true to the truth, no matter what,

But never scornful of those who have to lie.

 From some other translations:

George Barbanis: "always speaking the truth, yet without hatred for those who lie."

Edmund Keeley/Philip Sherrard: "always speaking the truth, yet without hating those who lie."

John Cavafy: "speaking the truth despite all hindrances, without ill-will, however, for the liars."

poemhunter.com: "always speaking the truth, but without rancor for those who lie."