This collection is not claiming that a certain person said a certain quote for the first time at a specific date. It should be clear that travelling teachers also learn from each other. They read books, they discuss their passion and teach their own versions or continuations of collected material.
Every quote on this blog is simply something that somebody said on a date at a location. The reason all this meta data is added is to make it easier for people who were in the same workshop to find them to join into the discussion.
Of course, we take all feedback on inaccuracies or mistakes into consideration.