The high cost of earthmoving

Few instances have occurred to me where great expense in moving ground was requisite to produce pleasing effects, and it is always with reluctance that I advise much alteration in the surface of ground, because, however great the labour, or expensive the process, it is a part of the art from which the professor can derive but little credit, since his greatest praise must be, that the ground looks, when finished, as if art had never interfered. "Ars est celare artem." [The excellence of art is in its concealment.]