Mottos

Beckenham Arms
Cator arms as lines

The motto of the Cators goes back to the 18th century when John Cator's was nihil sine labore, nothing without effort. His brother Joseph's was the same but in French, rien sans peine but the Beckenham arms had the motto non nobis solum, not for ourselves alone.

LBB Arms London Borough of Bromley Arms from 1965

The present motto of the London Borough of Bromley representing as it does the five districts of Penge, Beckenham, Bromley, Orpington and Chislehurst is Servire populo, serving the People.