It is in some sort Natural to be a Knave. We are Made so, in the very Composition of our Flesh and Blood; Only Fraud is called Wit in One Case, good Husbandry in Another, etc. while 'tis the whole Business of the World for One Man to Couzen Another.
Jupiter and Fraud
Jupiter appointed Mercury to make him a Composition of Fraud and
Hypocrisy, and to give every Artificer his Dose on't. The Medicine
was prepar'd according to the Bill, and the Proportions duly Observ'd,
and Divided: Only there was a great deal too Much of it made,
and the Overplus remain'd still in the Mortar. Upon Examining
the whole Account, there was a mistake, it seems, in the Reck'ning;
for the Taylors were forgotten in the Catalogue: So that Mercury
for Brevity sake, gave the Taylors the whoel Quantity that was
Left; and from hence comes the Old Saying; There's Knavery in
all Trades, but Most in Taylors.