"There can be no effective control of corporations while their political activity remains. To put an end to it will be neither a short nor an easy task, but it can be done. We must have complete and effective publicity of corporate affairs, so that the people may know beyond peradventure whether the corporations obey the law and whether their management entitles them to the confidence of the public. It is necessary that laws should be passed to prohibit the use of corporate funds directly or indirectly for political purposes; it is still more necessary that such laws should be thoroughly enforced. Corporate expenditures for political purposes, and especially such expenditures by public-service corporations, have supplied one of the principal sources of corruption in our political affairs. It has become entirely clear that we must have government supervision of the capitalization, not only of public-service corporations, including, particularly, railways, but of all corporations doing an interstate business. I do not wish to see the nation forced into the ownership of the railways if it can possibly be avoided, and the only alternative is thoroughgoing and effective legislation, which shall be based on a full knowledge of all the facts, including a physical valuation of property. This physical valuation is not needed, or, at least, is very rarely needed, for fixing rates; but it is needed as the basis of honest capitalization."