Mandatum nisi gratuitum nullum est

Mandatum nisi gratuitum nullum est. Unless a mandate is gratuitous it is not a mandate. Dig. 17, 1, 4; Inst. 3, 27; 1 Bouv. Inst. n. 1070.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.