What one knows (Part 1)

To want to know is ubiquitous. Yet, mankind may be the only species in the animal kingdom whose wants exceed its need – to know, that is. Like all animals we seek to know where to find sustenance, security, and peace; but we also seek to know just for the sake of knowing.
To know just for knowledge brings forth those who want to know how we know (a most complex issue), and the reliability of such knowledge. The path to knowledge is, of course, multifarious.