Never have I been glad or sad
That there was such a thing as bad.
There had to be, I understood,
For there to have been any good.
It was by having been contrasted
That good and bad so long had lasted.
That's why discrimination reigns.
That's why we need a lot of brains
If only to discriminate
'Twixt what to love and what to hate.
To quote the oracle at Delphi,