My nephew is getting married on Friday. He and his fiancee had planned to get married next year but last month he was diagnosed with a terminal brain tumour and is not likely to last beyond Christmas.
I'd like to quote a poem and put it in the card (getting an appropriate card was in itself a challenge!), but don't know where to start.
Something as up beat as possible, but not "may you live many years and live old together" because that clearly isn't going to happen 