We have emphasized that, unlike in mathematics and science, there are few immutable major premises in the law. … But the genius of the common law is that these premises are not fixed in cement. In the popular idiom they are always up for grabs, up for grabs to meet changes in our social, political, philosophical and economic climate.

Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide …, loc. 1309