The Gates
Æneidos, Bk. VI. vv. 893-898
Sleep, and his Sister, Death;
Twins ever with Us; and theirs the keys
Of Past and Present, the Above, and the Beneath;
And, as Brother and Sister please,
Forth flutter Falsehood. Truth,
Changed, according as they pass the Gate
Of Horn or of Ivory into Joy or Ruth,
Even dreamed kindness into Hate!