<p>From the earliest times people have pondered why we are here; philosophers and scientists continue to grapple with the question. For this compilation of wisdom and insights into what is truly important, Catherine Conlon tracked down people from varying walks of life, all with a deep connection to Ireland, for answers to life's crucial questions. Contributors include Maureen Gaffney, Chris Hadfield, Sr Stan, Colum McCann, Alice Taylor, Conor Po...