Pericles, Prince of Tyre is not commonly said to contain William Shakespeare’s finest writing. Hamlet‘s soliloquies, Lady Macbeth’s descent into madness, A Midsummer Night’s Dream‘s Pyramus and Thisbe, King Lear — all these (and more) are cited much more readily as being the best of The Bard. But the first scene of Act V of Pericles is, to my mind, as good as any of them, and The Public Theater’s Mobile Shakespeare Unit production of the show, which is playing at the company’s Lafayette Street home through the end of the month, treats it expertly. The titular ruler (portrayed here by Raffi Barsoumian) has endured all manner of hardships over much of the last two decades: assassination attempts, shipwrecks, losing his wife in childbirth and giving up his daughter soon after. And the girl Marina (Flor De Liz Perez) has known suffering as well: She’s an orphan who was taken in by royalty but fell afoul of them and was sent out to be killed, then she was captured by pirates and made to work in a brothel where every day was a new battle to maintain her virginity. Few in Shakespeare have had to endure such wrenching ordeals.