One of our country's founding documents addresses our right to the pursuit of happiness.
Notice it doesn't say we have a right to obtain and possess happiness.
Much has been written and said about happiness through history, and now French philosopher Frederic Lenoir weighs in.
With his Happiness: A Philosopher's Guide, Lenoir goes back in time for a history lesson, and up to the present day for thoughts on pursuit and possession.
He joins us from France.