— Bob Marley Jamaican singer, songwriter, musician 1945 - 1981
— Mario Puzo American Novelist 1920 - 1999
— Niccolo Machiavelli Italian politician, Writer and Author 1469 - 1527
Machiavelli commented on the relative ease of gaining favor from friends and enemies in Chapter 20 of The Prince, quoted above. However, this particular wording comes from a line spoken by Michael Corleone in The Godfather Part II (1974), written by Mario Puzo and Francis Ford Coppola:
My father taught me many things here. He taught me in this room. He taught me: keep your friends close, but your enemies closer.
— Sun Tzu ancient Chinese military general, strategist and philosopher from the Zhou Dynasty -543 - -495 a.C.
This has often been attributed to Sun Tzu and sometimes to Petrarch. It comes most directly from a line spoken by Michael Corleone in The Godfather Part II (1974), written by Mario Puzo and Francis Ford Coppola:
My father taught me many things here. He taught me in this room. He taught me: keep your friends close but your enemies closer.
Niccolò Machiavelli, who is also sometimes credited, wrote on the subject in The Prince:
It is easier for the prince to make friends of those men who were contented under the former government, and are therefore his enemies, than of those who, being discontented with it, were favourable to him and encouraged him to seize it.
„Is this one of those keep-your-friends-close-and-your-enemies-closer things?"
"I though it was keep your friends close so you have someone to drive the car when you sneak over to your enemy's house at night and throw up in his mailbox.“
— Cassandra Clare, livro City of Fallen Angels
Fonte: City of Fallen Angels
— Jean Cocteau French poet, novelist, dramatist, designer, boxing manager and filmmaker 1889 - 1963
Diary of an Unknown (1988)
„Go up close to your friend but do not go over to him! We should respect the enemy that is in our friend“
— Friedrich Nietzsche German philosopher, poet, composer, cultural critic, and classical philologist 1844 - 1900
— Publilio Siro Latin writer
— Mohammed Alkobaisi Iraqi Islamic scholar 1970
Understanding Islam, "Morals and Ethics" http://vod.dmi.ae/media/96716/Ep_03_Morals_and_Ethics Dubai Media
„Always sleep with one eye open. Never take anything for granted. Your best friends might just be your enemies.“
— Sara Shepard, The Lying Game
Fonte: The Lying Game
„Experience taught me that it is wise to be patient and forbearing with opponents and to use the divine cure of repeling with what is best (then verily he, between whom and you there was enmity, (will become) as though he was a close friend.) Quran 41:34“
— Salman al-Ouda journalist 1956
My Enemies, I Thank You (كتاب شكرا أيها الأعداء)
— Jack Vance, Lyonesse Trilogy
Chapter 8, section 3 (p. 480)
Lyonesse Trilogy (1983-1989), The Green Pearl (1985)
— Benjamin Disraeli British Conservative politician, writer, aristocrat and Prime Minister 1804 - 1881
The infernal Marriage, part 2, Chapter 4 (1834).
— Baltasar Gracián, livro Oráculo Manual e Arte de Prudência
Confiar de los amigos hoy como enemigos mañana.
Maxim 217 (p. 123)
The Art of Worldly Wisdom (1647)
„I knew my dad was a good man, a kind man, and though he'd led a wounded life, he'd done the best he could in raising me.“
— Nicholas Sparks, livro The Best of Me
John Tyree, Chapter 16, p. 198
2000s, Dear John (2006)
Fonte: The Best of Me
— Marc Benioff American businessman 1964
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).
— Richelle Mead, Vampire Academy
Fonte: Vampire Academy
— Bernard Kerik American police chief 1955
Newsday, October 20, 2003
— Richelle Mead, livro Last Sacrifice
Fonte: Last Sacrifice
— Voltaire, La Bégueule
Le mieux est l'ennemi du bien.
"La Bégueule" (Contes, 1772)
Variant translations:<p>The perfect is the enemy of the good.
The better is the enemy of the good.
translation of earlier traditional Italian Il meglio è nemico del bene, attested since 1603: Proverbi italiani (Italian Proverbs), by Orlando Pescetti http://www.treccani.it/enciclopedia/orlando-pescetti/ (c. 1556 – c. 1624) ( p. 30 https://books.google.com/books?id=0fkXqSJmiyEC&pg=PA30-IA2&q=%22Il%20meglio%20%C3%A8%20nemico%20del%20bene%22#v=onepage, p. 45 https://books.google.com/books?id=IRPam75-SI4C&pg=RA1-PT45&q=%22Il%20meglio%20%C3%A8%20nemico%20del%20bene%22#v=onepage)
Voltaire cites this saying in his poem "La Bégueule" ("The prude woman") while ascribing it to an unnamed "Italian sage"; he also gives the saying (without attribution) in Italian (Il meglio è l'inimico del bene [note spelling difference: l'inimico instead of nemico for "[the] enemy") in the article "Art Dramatique" ("Dramatic Art", 1770) in the Dictionnaire philosophique