Stephen Hawking deserves praise & admiration for coming to terms with a dreadful affliction. He shows no self-pity & he continued with all his mathematical research & teaching against all odds. He has seen two marriages crumble. Keeping a marriage going is difficult enough even under the most ideal circumstances. Unfortunately, his irreversible condition would have put a huge strain on both wives & the first one suffered from depression - - quite understandably. He has taken those blows with a philosophical approach & gets on with life as best he can.