Book excerpt: We have to train our mind for happiness and joy. When we go to an optimologist, the only person who would know our glasses’ number is us—the same way no one else can tell us what makes us happy and gives us joy. However, there are a lot of reasons for joy and happiness in our lives. This book is just a reminder for some of them. The purpose of this book is to cheer the readers, even for a few moments. This book is full of quotes that will make your day. As Michel De Montaigne said, “I quote others only in order the better to express myself.”