Helene Hanff said this quote

I tell you, life is extraordinary. A few years ago I couldn’t write anything or sell anything, I’d passed the age where you know all the returns are in, I’d had my chance and done my best and failed. And how was I to know the miracle waiting to happen round the corner in late middle age? 84, Charing Cross Road was no best seller, you understand; it didn’t make me rich or famous. It just got me hundreds of letters and phone calls from people I never knew existed; it got me wonderful reviews; it restored a self-confidence and self-esteem I’d lost somewhere along the way, God knows how many years ago. It brought me to England. It changed my life.