War, Napoleon Bonaparte

Never interrupt your enemy when he is making a mistake.

- Napoleon Bonaparte (1769–1821)

적이 실수를 범하고 있을 땐 적을 방해하지 마라.

- 나폴레옹 보나파트

Friend, Arabic Proverb

Any wise enemy is better than an ignorant friend.

- Arabic proverb

Quoted in Carol Bardenstein, Translation and Transformation in Modern Arabic Literature:The Indigenous Assertions of Muḥammad 'Uthmān Jalāl, Otto Harrassowitz Verlag, 2005, p. 66.

Arabic proverb: Proverbs from all Arabic speaking parts of the world.

현명한 적은 어리석은 친구보다 낫다.

- 아랍 속담

http://en.wikiquote.org/wiki/Arabic_proverbs
http://en.wikiquote.org/wiki/Category:Proverbs

Foe, Turkish Proverb

Be your enemy an ant, see in him an elephant.

- Turkish Proverb

그대의 적이 개미일지라도 그 적 속의 코끼리를 보아라.

- 터키 속담

Friend, Russian Proverb

An enemy will agree, but a friend will argue.

- Russian Proverb

적은 동의하지만, 친구는 논쟁한다.

- 러시아 속담

AFI #058 Al Pacino as Michael Corleone from The Godfather Part II (1974)

There are many things my father taught me here in this room. He taught me: keep your friends close, but your enemies closer.

- Al Pacino as Michael Corleone from The Godfather Part II (1974)

The bolded line is ranked #58 in the American Film Institute's list of the top 100 movie quotations in American cinema.

이 방에서 아버지는 제게 많은 것을 가르쳐 주셨죠. 당신께서는 말씀하셨어요. 친구를 가까이 해라. 그러나 적은 더 가까이 하라.

- 마이클 코르네오네 (알 파치노), 대부 2 (1974)