London, the Metropolis of Great-Britain, has been complained of, for Ages past, as a Kind of Monster, with a Head enormously large, and out of all Proportion to its Body.

Josiah Tucker (1712-1799)

A town, such as London, where a man may wander for hours together without reaching the beginning of the end, without meeting the slightest hint which could lead to the inference that there is open country within reach, is a strange thing. This colossal centralisation, this heaping together of two and a half millions of human beings at one point, has multiplied the power of this two and a half millions a hundredfold; has raised London to the commercial capital of the world . . .

Frederick Engels (1820-1895), Condition of the Working Class in England, 1845

The City is the Centre of its Commerce and Wealth. The Court of its Gallantry and Splendor. The Out-parts of its Numbers and Mechanicks; and in all these, no City in the World can equal it.

Daniel Defoe (1660-1731), Vision of Britain Letter 5 (London), Part 2: The City

. . . the lowest and vilest alleys of London do not present a more dreadful record of sin than does the smiling and beautiful country-side.

Arthur Conan Doyle (1859-1930), The Adventures of Sherlock Holmes: The Copper Beeches

Houses, churches, mixed together; Streets unpleasant in all weather; / Prisons, palaces contiguous, / Gates, a bridge, the Thames irriguous.
[ . . . ]
Many a beau without a shilling, / Many a widow not unwilling; / Many a bargain, if you strike it: / This is London! How d’ye like it?

John Bancks (1709-1751), A Description of London