…are like an examination paper — six only to be attempted. (Said Bertrand Russell.)
A couple of years ago on NRO I asked if anyone could improve on the not-very-satisfactory mnemonic I have always used for the Commandments:
“One idle damn Sunday, Dad killed cheating thief and lied to cover it.”
(Unsatisfactory because it mixes mnemonic devices: “idle” for “idol,” and “cover it” for “covet” are phonetic clues, while the other eight are
Nobody came up with anything that stuck in my mind better than that one, though.