On the topic of UFO's:

"As I understood more about that remorseless taskmaster called the scientific method: Everything hinged on the matter of evidence. On so important a question, the evidence must be airtight. The more we want it to be true, the more careful we have to be. No witness's say-so is good enough. People make mistakes. People play practical jokes. People stretch the truth for money or attention or fame. People occasionally misunderstand what they're seeing. People sometimes even see things that aren't there."

I can't help but see how all our problems in society today stem from the single fact that we don't practice the scientific method as Carl mentions. It's obligatory in understanding the world objectively and being grounded in reality. If you haven't already, read Demon Haunted world. Best thing to come out since 1995 besides me!