Goldfarb also said he felt Nozick engaged students in his ideas, saying that his office hours were unusually well attended.
"We're hoping that we'll be returning to teach again soon," he said.
Nozick said he originally suffered from stomach cancer four years ago, but after surgery and intensive chemotherapy, he recovered fully.
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However, he said that a recent routine medical test revealed the cancer had returned as a colon tumor.
Nozick said he is scheduled for surgery this Friday at Mass. General Hospital where he hopes doctors will be able to remove the tumor.