Letters to Juliet

I saw it today with my aunt, it was a little sappy I must admit...but it made me think a bit. The premise of the movie is that Sophie, the main character, finds a 50 year old letter written to Juliet. She answers it and they go on an adventure to find the woman's long lost love..blah, blah, blah. That's not what caught my attention. At the wedding of the long lost lovers, the bride read the letter Sophie had written to her as Juliet in response. I can't seem to find the letter online, but the beginning was a little something like this: "'What' and 'if' are two of the least threatening words in the English language. It's when they're put together that they can haunt you for the rest of your life. What if?" Mushy, I know, but just a little food for thought.