
Villars to Louis XIV upon departing for the 1709 campaign against the Allies, quoted in Prince Eugene's memoirs
Source: https://ia800303.us.archive.org/11/items/memoirsofprincee00lign/memoirsofprincee00lign.pdf
Villars to Louis XIV after the Battle of Malplaquet, quoted in Anquetil, Louis-Pierre, Histoire de France depuis les Gaulois jusqu'à la mort de Louis XVI (1819), Paris: Chez Janet et Cotelle, p. 241.
Villars to Louis XIV upon departing for the 1709 campaign against the Allies, quoted in Prince Eugene's memoirs
Source: https://ia800303.us.archive.org/11/items/memoirsofprincee00lign/memoirsofprincee00lign.pdf
Variant translations
If you know others and know yourself, you will not be imperiled in a hundred battles; if you do not know others but know yourself, you win one and lose one; if you do not know others and do not know yourself, you will be imperiled in every single battle.
Know your enemy and know yourself, find naught in fear for 100 battles. Know yourself but not your enemy, find level of loss and victory. Know not thy enemy nor yourself, wallow in defeat every time.
Literal translation: Know [the] other, know [the] self, hundred battles without danger; not knowing [the] other but know [the] self, one win one loss; not knowing [the] other, not knowing [the] self, every battle must [be] lost.
Source: The Art of War, Chapter III · Strategic Attack
“It's all God's will: you can die in your sleep, and God can spare you in battle.”
Source: War and Peace
“Count me not your friend but the enemy of your enemies.”
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 8, section 3 (p. 480)
Source: The First Century After Beatrice
“Choose battles that you can win without losing your heart and your soul.”
Advice to King Dingiswayo on the treatment of the defeated Ndwandwe, reported in Shaka Zulu : The Rise of the Zulu Empire (1955) by E. A. Ritter, p. 50
As quoted in Blackthink: My Life as Black Man and White Man https://en.wikiquote.org/wiki/Special:BookSources/0688011632 (1970)
1970s