 As Waite wrote, the voices of two great contemporaries[,] Thomas M. Cooley and Stephen J.Field, must have been echoing in his mind.Cooley′s classic treatise[,] "Constitutional Limitations", first published in 1868, had become a canonical text for jurists, and [Cooley's] support of due process in its emerging form gave the stamp of scholarly approval to an interpretation that seemed ethically more and more imperative."