Reading "The Joy of Old Age. (No Kidding)" by Oliver Sacks in the New York Times is a delightful jolt to the system. The scientist and author, most well-known for writing "Awakenings," has a knack for writing with verve, grace, and insight. Here, instead of writing about his patients, he looks inward and discusses his own 80th birthday. " 'I'm glad I'm not dead' sometimes bursts out of me when the weather is perfect," he writes. Read the rest.