Artworks's language is universal

A friend of mine says that he have to translate some of his posters for foreign customers. Why does he have do it? I strongly believe that posters and prints express the profound sense briefly without a translation. The performance doesn't have to being translated into text.

Perhaps some people have trouble understanding and appreciating of art? The artworks are nothing more than just the expression of artists feelings or thoughts. "And it is upon this capacity of man to receive another man's expression of feeling and experience those feelings himself, that the activity of art is based." - said Leo Tolstoy.

Most of people communicate their feelings and emotions in ways other than art. But what is unusual about the communication through art without any speech? Open your mind and let the reflection of art moves your heart. Artworks are not only commercial products!