"Mr. Stoppard is, as always, an adept craftsman. . . . [He] has provided food for thought, and not just a tasting menu but a full, footnoted banquet."--Ben Brantley, New York Times

"Tom Stoppard [is] the English-speaking world's brainiest playwright."--Wall Street Journal

"Oozes learning. . . . [Stoppard] proves that it is possible to construct a tight 100 minutes of drama around neuroscientific conceits. . . . He has succeeded . . . this is a play to admire."--Economist

"[The Hard Problem] displays intact the dramatist's remarkable ability to synthesize complex knowledge into wittily metaphorical dialogue. . . . Demand for this brainy, funny, and touching play will long outstrip supply."--New Statesman

"Tom Stoppard's first play for nine years is typically witty--an intellectually charged piece that delights in the slippery nature of language and pulses with interesting ideas."--London Evening Standard

"100 minutes of condensed brain-ache, marbled by wit and some camisoled sexiness. . . . Admirably high-minded . . . It succeeds, in my view triumphantly."--Daily Mail

"Stimulating . . . absorbing . . . A rich, ideas-packed work that . . . offers endless stimulation and represents, like so much of [Stoppard's] work, a search for absolute values and a belief in the possibility of selfless virtue."--Guardian

"The dialogue is flashily impressive . . . it leaves one panting with admiration."--Spectator (UK)