He advocates that the concept of a copyright "should not be extended without limit," but that, given the need to protect intellectual property rights, perhaps use of intellectual property could be limited by contract. And in all this, we should consider the way the people involved looked at what they were doing at different times.
他主張著作權的觀念不宜「無限制的延伸」，但基於保護智慧財產權的前提，或可以契約的方式來限制，而這其中，更不要忽略今昔觀念不同的問題。