“If a person resolves to fight, he ought to know what he is fighting for. Otherwise it makes no sense.”
Source: Detective Story (2008), p. 69.
Context: If a person resolves to fight, he ought to know what he is fighting for. Otherwise it makes no sense. A person usually fights against a power in order to gain power himself. Or else because the power in question is threatening his life.
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Imre Kertész 61
Hungarian writer 1929–2016Related quotes

“He won't fight the Germans but he will fight for Office.”
His opinion of Asquith's attempts to stay in power during the political crisis that ousted him from the premiership, quoted in Frances Stevenson's diary entry (5 December 1916), A. J. P. Taylor (ed.), Lloyd George: A Diary (London: Hutchinson, 1971), p. 133
Secretary of State for War

“He who knows when he can fight and when he cannot will be victorious.”
Source: The Art of War, Chapter III · Strategic Attack

Letter to Sir William Spring (September 1643)

On Muammar Gaddafi's Death http://www.theblaze.com/stories/farrakhan-condemns-killing-of-brother-gadhafi-assassination (26 October 2011]

“I know you're set for fighting, but what are you fighting for?”
Are You Fighting For" http://web.cecs.pdx.edu/~trent/ochs/lyrics/what-are-you-fighting-for.html"What from Songs for Broadside (1976)
Lyrics
Context: Oh you tell me that there's danger to the land you call your own
And you watch them build the war machine right beside your home
And you tell me that you're ready to go marchin' to the war
I know you're set for fighting, but what are you fighting for?

The Art of Poetry on a New Plan (1761), vol. ii. p. 147.
The saying "he who fights and runs away may live to fight another day" dates at least as far back as Menander (ca. 341–290 B.C.), Gnomai Monostichoi, aphorism #45: ἀνήρ ὁ ϕɛύγων καὶ ράλίν μαχήɛṯαί (a man who flees will fight again). The Attic Nights (book 17, ch. 21) of Aulus Gellius (ca. 125–180 A.D.) indicates it was already widespread in the second century: "...the orator Demosthenes sought safety in flight from the battlefield, and when he was bitterly taunted with his flight, he jestingly replied in the well-known verse: The man who runs away will fight again".

“It is futile to fight against, if one does not know what one is fighting for.”
Capitalism: The Unknown Ideal (1966)