Le Corbusier's design called for the use of raw concrete, whose surface not smoothed or polished and which showed the marks of the forms in which it dried. Pierre Jeanneret wrote to his cousin that he was in a continual battle with the construction workers, who could not resist the urge to smooth and finish the raw concrete, particularly when important visitors were coming to the site. At one point one thousand workers were employed on the site of the High Court of Justice. Le Corbusier wrote to his mother, "It is an architectural symphony which surpasses all my hopes, which flashes and develops under the light in a way which is unimaginable and unforgettable. From far, from up close, it provokes astonishment; all made with raw concrete and a cement cannon. Adorable, and grandiose. In all the centuries no one has seen that."