The inhabitants of earth have many tongues, those of heaven have but one.
Multæ terricolis linguæ, cœlestibus una.
Source, in full
Motto of the publishing firm of Bagster & Sons. The Greek is said to have been due to H. F. Cary (Notes and Queries, ser. i. v. 587). A member of the Bagster family said that the Latin was by Greenfield. As the two versions appear on Greenfield's tomb, Henry Richard Tedder (DNB, ii, 405) thinks "it is very probable that they were both by him."