That's the first line as I always heard it, but much of the rest is in dispute. I doubt that there's a canonical version, but if there were this guy would probably know. I don't know if there's a Latin version or not, but I know where I'd look.
Although the meter could be made to fit, I must confess I've never heard a version that included "disembodied rat neurons". That's because we have better things to do with them.