[I]f the horne have this situation, and be so forwardly affixed, as is described, it will not be easily conceived, how it can feed from the ground… – Thomas Browne (1605–1682)

The Unicorn — the wild, white, fierce, chaste Moon, whose two horns, unlike those of mortal creatures, are indissolubly twisted into one, whose brilliant horn drives away the darkness and evil of the night. – Robert Brown, The Unicorn: A Mythological Investigation, 1881, wording slightly

Hey, I like unicorns. Unicorns are just weaponized ponies. – Damon Suede, Bad Idea, 2013