the genius and industry of man when kept to ethical standards still have full play, and what he achieves is his .
 Theodore Roosevelt, Theodore Roosevelt; an Autobiography (1913). copy citation

Context

“Moreover, it is absurd to treat the size of a corporation as in itself a crime. As Judge Hook says in his opinion in the Standard Oil Case: "Magnitude of business does not alone constitute a monopoly . . . the genius and industry of man when kept to ethical standards still have full play, and what he achieves is his . . . success and magnitude of business, the rewards of fair and honorable endeavor [are not forbidden] . . . [the public welfare is threatened only when success is attained] by wrongful or unlawful methods."” source