George Shiras, Jr.,
Parsons v. District of Columbia…
“ It is trite to say that general principles announced by courts, which are perfectly sound expressions of the law under the facts of a particular case, may be wholly inapplicable in another and different case; and there is scarcely any department of the law in which it is easier to collect one body of decisions and contrast them with another in apparent conflict than that which deals with the taxing and police powers. ”
