that's a phrase from a 2007 French musical film, 'les chansons d'amour'. The character (Ismaël) is said to be a non-observant Jew (but I didn't understand that his religion was relevant).
The movie is titled 'Love songs' in English. More on the film and authors in links.
These words were attributed to Bernard-Henri Lévy, a French philosopher and writer of Jewish descent. However, it's important to note that the origins of the phrase are not definitively confirmed.
seize moins six means 16 - 6 in French.
Moins means "less" or "minus"or "take away"
Less is moins in french.
moins
Moins is usually used with another musical term. Moins means "less" in French and so basically moins "something" means less of it.
minus: moins =]
moins chère
au moins
hyphen : tiretminus : moins
onze moins un moins un égale neuf
moins preferee
dix-neuf moins onze font huit: 19 - 11 = 8