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.

The New Nationalism (1910)