A dictionary of Proverbs (Oxford Paperback Reference)

It takes TWO to make a quarrel

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  1706 J. STEVENS Spanish & English Diet. s.v. Barajar, When one will not, two do not Quarrel. 1732 T. FULLER Gnomologia no. 4942 There must be two at least to a Quarrel. 1859 H. KINGSLEY Geoffrey Hamlyn II. xiii. It takes two to make a quarrel, Cecil, and I will not be one. 1979 Times 3 Dec. 13 If it were not for the truism that it takes at least two to make a quarrel, the French and the Germans.. could fairly claim that the fault lay wholly with the United Kingdom. "anger, quarrelsomeness
  

It takes TWO to tango
Probably based on earlier sayings of the it takes two to.. form (see above). Sung by Pearl Bailey, the Hoffman and Manning song (quot. 1952) was a worldwide hit, giving this saying instant international currency.

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  1952 HOFFMAN & MANNING Takes Two to Tango (song-title) 2 There are lots of things you can do alone! But, takes two to tango. 1965 Listener 24 June 923 As for negotiation.. the President has a firm, and melancholy, conviction: it takes two to tango. 1991 Times 22 May 14 Remember. It only takes two to tango, and neither of them has to be you. 1999 Bella 25 May 16/2 Deep down, I know it takes two to tango and the blame should lie with them equally. "co-operation
  

TWO wrongs don’t make a right
Similar to TWO blacks don’t make a white.

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  1783 B. RUSH Letter 2 Aug. (1951) I. 308 Three wrongs will not make one right. 1814 J. KERR Several Trials of David Barclay 249 Two wrongs don’t make one right. 1905 S. WEYMAN Starvecrow Farm xxiv. He ought to see this!.. After all, two wrongs don’t make a right. 1991 Washington Post 26 Apr. Even in law school, two wrongs don’t make a right. 2002 Washington Times 30 Jan. A16 Moreover, in the Austrian view, two wrongs don’t make a right. The central bank cannot undo its mistakes by reversing course. "good and evil
  

two see also BETTER one house spoiled than two; BETWEEN two stools one falls to the ground; a BIRD in the hand is worth two in the bush; two BOYS are half a boy, and three boys are no boy at all; of two EVILS choose the less; FOUR eyes see more than two; one HOUR’S sleep before midnight is worth two after; NO man can serve two masters; ONE for sorrow, two for mirth; if you can’t RIDE two horses at once, you shouldn’t be in the circus; if you RUN after two hares you will catch neither; THREE may keep a secret, if two of them are dead; one VOLUNTEER is worth two pressed men.