What is the argument on the other side? Only this, that no case has been found in which it has been done before. That argument does not appeal to me in the least. If we never do anything which has not been done before, we shall never get anywhere. The law will stand whilst the rest of the world goes on; and that will be bad for both.
Packer v Packer  2 All ER 127, by Lord Denning at p. 129