Harlan F. Stone,
Lamb v. Schmitt — Opinion of the Court
“ As commonly stated and applied, it proceeds upon the ground that the due administration of justice requires that a court shall not permit interference with the progress of a cause pending before it, by the service of process in other suits, which would prevent, or the fear of which might tend to discourage, the voluntary attendance of those whose presence is necessary or convenient to the judicial administration in the pending litigation. ”
