Northern Securities Company v. United States…
“ It simply requires that a party's freedom in trade between the states shall not be cut down by contract with a stranger. So far as that phrase goes, it is lawful to abolish competition by any form of union. It would seem to me impossible to say that the words 'every contract in restraint of trade is a crime, punishable with imprisonment,' would sent the members of a partnership between, or a consolidation of, two trading corporations to prison,-still more impossible to say that it forbade one man or corporation to purchase as much stock as he liked in both. ”
