H.L. Mencken - Morality is doing right, no matter what you are told...
Morality is doing right, no matter what you are told. Religion is doing what you are told, no matter what is right.
The only references to H L Mencken and this quote are found on pages which are solely about this quote. After searching through several quote repositories which have NUMEROUS quotations from Mencken about religion (many of which are usually insulting toward religion), we have been able to find no reference to this quote. Those various websites don't contain every quotation from every person, but it seems an odd omission if it were a true quote. Beyond that, the language used does not match well with his style used in other quotations. The idea expressed in the quote may be similar to Mencken's feelings about religion, but it is more likely that someone on the Internet paraphrased him or entirely made up this quote.
If you have evidence to the contrary and can provide a source for this quote, please leave a comment below and we'll review it.