Everyone's life is different — yet most people still utter one of four common phrases on their deathbeds, according to Pulitzer Prize-winning author and oncologist Siddhartha Mukherjee. Each of the phrases offers an important lessons for leading a fulfilling and successful life, Mukherjee said during a commencement speech at the University of Pennsylvania last week. The phrases are:I want to tell you that I love you. You're living in a world where love and forgiveness have become meaningless, outdated platitudes ... Just make sure you actually mean words like "love" and "forgiveness" when you use them, said Mukherjee.

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Persons: oncologist Siddhartha Mukherjee, Mukherjee, I've, J, Kim Penberthy, Richard Cowden, Cowden Organizations: University of Pennsylvania, Cancer, of Virginia, Harvard's Institute, Quantitative, Harvard Medical School, CNBC