Successful enterprise, of the type which benefits all mankind, can only exist if the conditions are such as to offer great prizes as the rewards of success.
 Theodore Roosevelt, State of the Union Address. copy citation

Context

“There have been abuses connected with the accumulation of wealth; yet it remains true that a fortune accumulated in legitimate business can be accumulated by the person specially benefited only on condition of conferring immense incidental benefits upon others. Successful enterprise, of the type which benefits all mankind, can only exist if the conditions are such as to offer great prizes as the rewards of success. The captains of industry who have driven the railway systems across this continent, who have built up our commerce, who have developed our manufactures, have on the whole done great good to our people.” source