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‘Fair use’ is a key part of the social bargain at the heart of copyright law, in which as a society we concede certain limited individual property rights to ensure the benefits of creativity to a living culture. We have chosen to encourage creators by rewarding their efforts with copyright. To promote new cultural production, however, it also is important to give other creators opportunities to use copyrighted material when they are making something new that incorporates or depends on such material. Unless such uses are possible, the whole society may lose important expressions just because one person is arbitrary or greedy. So copyright law has features that permit quotations from copyrighted works to be made without permission, under certain conditions.