Two or three witnesses

Wow....I am reading a book that is challenging my perspective of my past.  One of the blogs that I followed just posted a link on the same subject.  I am not ready to write about it.  I learned a long time ago, when I was working on my health problems, that if there is something I need to learn I will get it from 2 or 3 different sources.  I also realize that they can all be wrong together.  However, coming from different perspectives and coming up with such similar information gives me a lot to think about.