Charles Evans Hughes, Lone Star Gas Company v. Texas…
“ If the findings of the Commission as to value and other basic elements were to be taken as presumptively correct an a ppellant could not succeed save by overcoming those determinations by clear and convincing proof, appellant could not be denied the right to introduce evidence as to its property and business as an integrated system and to have the sufficiency of its evidence ascertained by the criterion which the Commission had properly used in the same manner in reaching its conclusion as to the Texas rate. ”
