Louis Brandeis, United States v. One Ford Coupe Automobile…
“ It is true that the use of the word 'tax' in imposing a financial burden does not prove conclusively that the burden imposed is a tax, and that, when it appears from its very nature that the imposition prescribed is a penalty solely, it must be treated in law as such. But the imposition here in question is not of that character. A tax on intoxicating liquor does not cease to be such because the sovereign has declared that none shall be manufactured, and because the main purpose in retaining the tax is to make law breaking less profitable. ”
