It was actually part of the print-out, not just a comment some waiter had scribbled on?

Maybe it's something like that brand of soap-forget what it was called or I'd give a wiki link. The brand's owner wanted to save the world by disseminating a message of universal peace and love via small notes hidden inside the soap boxes. Darnedest thing. He's dead now, but apparently his children continue the practice, though I'm not sure if they keep it as an advertising gimmick or because they actually believe in it. If I find the link I'll post it here, but don't hold your breath.

Yes, it was part of the print-out. The waitress was as flabbergqsted as I was, so it's probably the owner or, more likely, the company that programmed the check's printer.

The Sleepers have restaurants now? I think you're thinking of what that word means in Mage rather than in UA.

I couldn't corroborate this, but I believe it is a quote by the Lubavitcher Rebbe, Menahem Mendel Schniersen (I'm unsure about the English spelling), spiritual leader and supposed messiah of a Jewish religious group called Chabad. The group believes that attitude matters very much, and is known for saying "it is a great mitzvah to always be happy".

The Lebavitcher Rebbe blessed me when I was a baby, giving me a dollar bill inscribed with blessings, so I have a personal connection.

He lived in New York.

I am familiar with the Habad movement and their late Rabbi, but not with that saying. It would be interesting to investigate on this further. It's an eerie saying, regardless. A hopeful one, too.

Reply to Bicornis: I was referring to the mundanes, not Sleepers the organization.

Yes, I inferred the intended meaning... I don't believe that term is generally used outside White Wolf's Mage, however. UA doesn't have the kind of sharp divide between "magical people" and "mundanes" anyway.

The soap MCLowell was thinking of is Doctor Bronner's. I use it. It's good soap, in addition to being the hygenic equivalent of Timecube.com. Here is a Straight Dope article on the Doctor and his soap, here is the official Doctor Bronner's web site and here is the rant itself.