arly on in ''Twelfth Night,'' Feste, one of Shakespeare's most memorable fools, strives to straighten out the noble Olivia on the subject of mourning. ''Good madonna,'' he says, ''give me leave to prove you a fool.'' Then he engages her in a little improving dialectic
Feste. Good madonna, why mourn'st thou?
Olivia. Good fool, for my brother's death.
Feste. I think his soul is in hell, madonna.
Olivia. I know his soul is in heaven, fool.
Feste. The more fool, madonna, to mourn…