If it is true that...

Congress has power to lay and collect taxes, duties, imposts, and excises to pay debts and provide for the common defense and general welfare of the United States

and

Congress has power to promote science and useful arts by securing authors' and inventors' exclusive rights to their writings and discoveries for limited times

Then it must be true that...

Congress has power to define and punish piracies and felonies committed on the high seas, and offenses against the law of nations