Frank LLoyd Wright says that the truth is more important than the facts. How frustrating is it when you know what is true, but somebody tells you the "fact of the matter is..."
Everybody always swears that what they know is the truth. But it has been proven time and time again that when something happens in real life, everybody will give their version of the truth - "I swear to God!..." Everybody knows their version is right. But why do we all tell a slightly different version of the truth. Rather than being certain, what we should say is, "to my knowlege, this is what happened".