Just as traditional "ownership"
of physical property may be riddled with exceptions to ensure
public safety or meet public need, so too does copyright
ownership have its exceptions. Such exceptions and limitations
attempt to achieve a proper balance between the author's
"exclusive right" to the profits and the display
of his or her "work of art" and the public's interest
in using that "art" to advance knowledge and ideas.
forms of expression may be copyrighted, not methods, layouts,
ideas or concepts.