The stars are dead. The animals will not look: We are left alone with our day, and the time is short, and History to the defeated May say Alas but cannot help nor pardon.

-Auden,W(ystan) H(ugh)
  Spain.

Vae victis. Down with the defeated!

-Brennus
  BC  His cry on capturing Rome. Quoted in Livy  Ab urbe condita, bk.5, ch.48, section 9.

A man can be destroyed but not defeated.

-Hemingway, Ernest Millar
  The Old Man and the Sea.

Vae victis! Down with the defeated!

-Livy full name Titus Livius   5917
Attributed to the Gallic King Brennus, who had captured Rome in 390      , bk.5, ch.48.

Life's battle is a conquest for the strong; The meaning shows in the defeated thing.

-Masefield,John Edward
  'The Wanderer'.

Know the enemyand know yourself; in a hundred battles, you will never be defeated.

-SunTzu
c.500  BC  Art ofWar, ch.3 (translated byYuan Shibang,1987).