Terry Pratchett quote: “See a pin and pick it up, and, all day long, you'll have a pin.”

F. Tennyson Jesse (1888–1958) British criminologist

Title of book.

Thomas Fuller (writer) (1654–1734) British physician, preacher, and intellectual

Compare Poor Richard's Almanack (1737) : A pin a day is a Groat a Year.
Introductio ad prudentiam: Part II (1727), Gnomologia (1732)

“Hypotheses pinned me down, as Gulliver was pinned by the countless threads of the Lilliputians…”

John Fowles book Daniel Martin

Daniel Martin (1977)

“I like being a pin-up girl. There's nothing wrong with it.”

Jayne Mansfield (1933–1967) American actress, singer, model

As quoted in The Sex Goddess in American Film, 1930-1965: Jean Harlow, Mae West, Lana Turner, and Jayne Mansfield (2009) by Jessica Hope Jordan

“But that was Isabelle — if there was a boy around and blame that needed to be pinned on someone, Isabelle would pin it on him”

Cassandra Clare book City of Glass

Source: City of Glass

“Each person, therefore, making a tenth part of forty-eight thousand pins, might be considered as making four thousand eight hundred pins in a day. But if they had all wrought separately and independently, and without any of them having been educated to this peculiar business, they certainly could not each of them have made twenty, perhaps not one pin in a day; that is, certainly, not the two hundred and fortieth, perhaps not the four thousand eight hundredth, part of what they are at present capable of performing, in consequence of a proper division and combination of their different operations.”

Adam Smith (1723–1790) Scottish moral philosopher and political economist

Source: The Wealth of Nations (1776), Book I, Chapter I, p. 8-9.
Context: To take an example, therefore, from a very trifling manufacture, but one in which the division of labour has been very often taken notice of, the trade of a pin-maker: a workman not educated to this business (which the division of labour has rendered a distinct trade, nor acquainted with the use of the machinery employed in it (to the invention of which the same division of labour has probably given occasion), could scarce, perhaps, with his utmost industry, make one pin in a day, and certainly could not make twenty. But in the way in which this business is now carried on, not only the whole work is a peculiar trade, but it is divided into a number of branches, of which the greater part are likewise peculiar trades. One man draws out the wire; another straights it; a third cuts it; a fourth points it; a fifth grinds it at the top for receiving the head; to make the head requires two or three distinct operations; to put it on is a peculiar business; to whiten the pins is another; it is even a trade by itself to put them into the paper; and the important business of making a pin is, in this manner, divided into about eighteen distinct operations, which, in some manufactories, are all performed by distinct hands, though in others the same man will sometimes perform two or three of them. I have seen a small manufactory of this kind, where ten men only were employed, and where some of them consequently performed two or three distinct operations. But though they were very poor, and therefore but indifferently accommodated with the necessary machinery, they could, when they exerted themselves, make among them about twelve pounds of pins in a day. There are in a pound upwards of four thousand pins of a middling size. Those ten persons, therefore, could make among them upwards of forty-eight thousand pins in a day. Each person, therefore, making a tenth part of forty-eight thousand pins, might be considered as making four thousand eight hundred pins in a day. But if they had all wrought separately and independently, and without any of them having been educated to this peculiar business, they certainly could not each of them have made twenty, perhaps not one pin in a day; that is, certainly, not the two hundred and fortieth, perhaps not the four thousand eight hundredth, part of what they are at present capable of performing, in consequence of a proper division and combination of their different operations.