Similar to FOUR eyes see more than two. Quot. 2001 relies on a slang use of head to mean
‘lavatory’.
c 1390 GOWER Confessio Amantis I. 1021 Tuo han more wit then on. 1530 J.
PALSGRAVE L’éclaircissement de la Langue Française 269 Two wyttes be farre better
than one. 1546 J. HEYWOOD Dialogue of Proverbs I. ix. C2V But of these two thynges
he wolde determyne none Without ayde. For two hedds are better than one. 1778 S.
FOOTE Nabob I. 5 Here comes brother Thomas; two heads are better than one; let us take
his opinion. 1979 J. RATHBONE Eurokillers xviii. Two heads are better than one. .. I’d
value your advice. 2001 Washington Post 14 July C12 (Jeff MacNelly’s Shoe comic
strip)’Roz is having another restroom installed here.’ ‘Then it’s true. Two heads are
better than one.’ assistanceTWO is company, but three is noneThe alternative ending is three’s a crowd.1706 J. STEVENS Spanish & English Dict. s.v. Compañia, A Company consisting of
three is worth nothing. It is the Spanish Opinion, who say that to keep a Secret three are
too many, and to be Merry they are too few. 1860 T. C. HALIBURTON Season Ticket
viii. Three is a very inconvenient limitation, constituting, according to an old adage, ‘no
company’. 1869 W. C. HAZLITT English Proverbs 442 Two is company, but three is
none. 1944 Modern Language Notes LIX. 517 Two’s company, three’s a crowd. 1979 J.
LEASOR Love & Land Beyond viii. Two’s company and three’s none, so one of the three
has been taken out of the game. 2002 Washington Post 10 Mar. SC11 (Family Circus
comic strip) Two’s company, three’s a crowd. ‘’Specially on a tandem bike.’ friendsTWO of a trade never agree1630 DEKKER Second Part of Honest Whore II. 154 It is a common rule, and ‘tis
most true, Two of one trade never loue. 1673 E. RAVENSCROFT Careless Lovers A2V
Two of a Trade can seldome agree. 1727 GAY Fables I. xxi. In every age and clime we
see, Two of a trade can ne’er agree. 1887 G. MEREDITH Poems (1978) I. 148 Two of a
trade, lass, never agree! Parson and Doctor!—don’t they love rarely, Fighting the devil in
other men’s fields! 1914 ‘SAKI’ Beasts & Super-Beasts 96 The snorts and snarls.. went
far to support the truth of the old saying that two of a trade never agree. 1981 E.
LONGFORD Queen Mother vii. There is an old adage, ‘Two of a kind never agree.’
quarrelsomeness; similarity and dissimilarity; trades and skills