Social and benevolent schemes, such as Utopia, Coleridge's Pantisocracy, the dreams of Owen, Fourier, St. Simon, the New Republic, and so on.
“Godwin! Hazlitt! Coleridge! Where now are their `novel philosophies and systems'? Bottled moonshine, which does not improve by keeping.” —Birrell: Obiter Dicta, p. 109 (1885).
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894