In 2005, the Apple founder gave a commencement speech at Stanford University that went viral on YouTube under the title, “How to Live Before You Die.” Jobs, then 50 years old, described how for the previous 33 years, he started every morning by looking in the mirror and asking himself, “If today were the last day of my life, would I want to do what I am about to do today?” If the answer was “no” for too many days in a row, he claimed, he knew he needed to make a change. “Remembering I’ll be dead soon is the most important tool I’ve ever encountered to help me make the big choices in life,” he said.