When she was a young woman, distinguished author and critic carolyn heilbrun made a solemn resolution not to live past "Three score years and ten." Taking her own life at the age of seventy, she reasoned, would give clos...When she was a young woman, distinguished author and critic carolyn heilbrun made a solemn resolution not to live past "Three score years and ten." Taking her own life at the age of seventy, she reasoned, would give closure to a life well lived.