english: He wrote a book called "The Four Things That Matter Most" about the four things you want to say to the most important people in your life before they or you die: thank you, I love you, forgive me, I forgive you.
non_english: In zijn boek 'The Four Things That Matter Most' staan de vier dingen die je wilt zeggen tegen de belangrijkste mensen in je leven voordat ze doodgaan, of jij: dank je, ik hou van je, vergeef me, ik vergeef je.