George Sutherland

“ The fundamental policy of the legislation is that, in respect of persons engaged in the same line of interstate commerce, competition is desirable and that whatever substantially lessens it or tends to create a monopoly in such line of commerce is an evil. Offense against this policy, by a discrimination in prices exacted by the seller from different purchasers of similar goods, is no less clear when it produces the evil in respect of the line of commerce in which they are engaged than when it produces the evil in respect of the line of commerce in which the seller is engaged. ”

“ To search elsewhere for a meaning either beyond or short of that which they disclose is to invite the danger, in the one case, of converting what was meant to be open and precise, into a concealed trap for the unsuspecting, or, in the other, of relieving from the grasp of the statute some whom the Legislature definitely meant to include. ”