It's by a brazilian writter called Paulo Coelho. Juliana says he sucks. All I know is that I loved this book. It's the most beautiful love story I've ever read. And it's more than a love story.
Love is like a drug.
At the begining comes the sensation of excitment and extreme happiness. Then, the day after, you want more. You're not adicted yet, but you like the sensation, and you think you can keep it under control. You think of the person you love for 2 minutes and forget them for 3 hours. But as time goes by, you become used to that person.