A dictionary of Proverbs (Oxford Paperback Reference)

Where there’s MUCK there’s brass
Brass is a slang and dialectal word for ‘money’ here.

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  1678 J. RAY English Proverbs (ed. 2) 179 Muck and money go together. 1855 H. G. BOHN Hand-Book of Proverbs 564 Where there is muck there is money. 1943 J. W. DAY Farming Adventure xii. ‘Where there’s muck there’s money’ is as true now as then. But farms today lack the mud. 1967 Punch 13 Sept. 396 ‘Where there’s muck there’s brass’ synopsised for many a North-country businessman the value of dirt in the profit-making process. 2001 Spectator 15/22 Dec. 28 Where there’s muck, there’s brass, and it was the job of the stercorarius to empty the cesspits and sell on the contents to farmers on city outskirts. "money
  

muckle see MANY a mickle makes a muckle.
mud see throw DIRT enough, and some will stick.
multitude see CHARITY covers a multitude of sins.
MURDER will out
Similar in form to TRUTH will out.

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  c 1325 Cursor Mundi (EETS) 1. 1084 For-thi [therefore] men sais into this tyde [time], Is no man that murthir may hide. c 1390 CHAUCER Nun’s Priest’s Tale 1. 4242 Mordre wol out that se we day by day. 1596 SHAKESPEARE Merchant of Venice II. ii. 73 Truth will come to light; murder cannot be hid long. 1860 W. COLLINS Woman in White II. 64 Crimes cause their own detection, do they? And murder will out (another moral epigram), will it? 1978 F. NEUMANN Seclusion Room ix. ‘Murder will out,’ Berman announced, smiling fatuously. "concealment; violence
  

murder see also KILLING no murder.
What MUST be, must be
Cf. Ital. che sara sara, what will be, will be (this English form is also used).

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  c 1386 CHAUCER Knight’s Tale 1. 1466 Whan a thyng is shapen, it shal be. 1519 W. HORMAN Vulgaria 20^V That the whiche muste be wyll be. 1546. HEYWOOD Dialogue of Proverbs II. i. F3 That shalbe, shalbe. 1616 BEAUMONT & FLETCHER Scornful Lady III. i. I must kiss you. ..What must be, must be. 1841 S. WARREN Ten
  

Thousand a Year I. i. It’s really very inconvenient.. for any of my young men to be absent.. but—I suppose—what must be must be. 1850 DICKENS David Copper-field lvii. ‘My love,’ observed Mr. Micawber, ‘.. I am always willing to defer to your good sense. What will be—will be.’ 1981 J. BINGHAM Brock 70 Oh well, what must be, must be. ■ fate and fatalism