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Truth in Television for several reasons. Hmm. We All Die Someday (so let's keep our dignity instead of thrashing about for one more breath) ? Aragorn's character page lists it as Nothing Left to Do but Die which seems to be something else that what you mean, but Living Is More than Surviving may be closer - sure, the character would survive a few months more, but at what cost?

A person with terminal cancer is in the hospital. A surgery is found which may give him a few more months, but he may die on the operating table. He refuses the treatment, since he prefers to die at home than risk dying in the hospital for a few more months.