Source: A Breath of Snow and Ashes
“Your Worst Enemy Could Be Your Best Friend && Your Best Friend Your Worst Enemy”
“common enemies make enemies become friends!”
Resurrecting Midnight
As quoted in Diogenes Laërtius, Lives and Opinions of Eminent Philosophers, "Pythagoras", Sect. 23, as translated in Dictionary of Quotations http://archive.org/details/dictionaryquota02harbgoog (1906) by Thomas Benfield Harbottle, p. 320
“The enemy of my enemy is my friend, so that makes Google my best friend.”
Quoted in Miguel Helft, " Google and Salesforce Join to Fight Microsoft http://www.nytimes.com/2008/04/14/technology/14google.html?_r=1&oref=slogin", New York Times (April 14, 2008).
“He will never have true friends who is afraid of making enemies.”
No. 401
Characteristics, in the manner of Rochefoucauld's Maxims (1823)
Source: Selected Essays, 1778-1830
“Better make a weak man your enemy than your friend.”
Affurisms. From Josh Billings: His Sayings (1865)
“Foil hatred with goodness and love and make those enemy your true friends!”
Understanding Islam, "Morals and Ethics" http://vod.dmi.ae/media/96716/Ep_03_Morals_and_Ethics Dubai Media
“Do I not destroy my enemies when I make them my friends?”
His response when "accused of treating his opponents with too much courtesy and kindness, and when it was pointed out to him that his whole duty was to destroy them", as quoted in More New Testament Words (1958) by William Barclay; either this anecdote or Lincoln's reply may have been adapted from a reply attributed to Holy Roman Emperor Sigismund:
:* Some courtiers reproached the Emperor Sigismond that, instead of destroying his conquered foes, he admitted them to favour. “Do I not,” replied the illustrious monarch, “effectually destroy my enemies, when I make them my friends?”
::* "Daily Facts" in The Family Magazine Vol. IV (1837), p. 123 http://books.google.de/books?id=aW0EAAAAQAAJ&pg=PA123&dq=destroy; also quoted as simply in "Do I not effectually destroy my enemies, in making them my friends?" in The Sociable Story-teller (1846)
Disputed
