I remember the day I decided to start these notes. Like all important decisions, this one came to me like a gust, seizing my mind and forcing immediate action. In the next instant, the thought of what to write. The consensus: start with the acknowledgments. So I wrote about Nelson, Dostoevsky, Swift, Pondé and a few others, and it was not a week from the decision to the publication of the first notes. Fair enough. To the initiate, I see no reasonable posture other than that of humility; it is necessary to be accountable to those who contributed in some way to his initiation. Gratitude is a noble and profitable exercise, recognition is a requirement of character. I say this to conclude: the faculty of gratitude seems to me a good parameter to distinguish the one who, by voluntary effort, strives to be greater than his vanity.