"To the second end, we hold that minimum wage commissions should be established in the Nation and in each State to inquire into wages paid in various industries and to determine the standard which the public ought to sanction as a minimum; and we believe that, as a present installment of what we hope for in the future, there should be at once established in the Nation and its several States minimum standards for the wages of women, taking the present Massachusetts law as a basis from which to start and on which to improve."