There's another way to phrase that and that is that the absence of evidence is not the evidence of absence. It is basically saying the same thing in a different way. Simply because you do not have evidence that something does exist does not mean that you have evidence that it doesn't exist.
Donald RumsfeldThe coalition did not act in Iraq because we had discovered dramatic new evidence of Iraq's pursuit. We acted because we saw the evidence in a dramatic new light - through the prism of our experience on 9/11.
Donald RumsfeldMost US presidents since World War II have led military actions without a declaration of war by Congress, though most, if not all, have properly consulted and sought support from Congress. That is the wise thing to do.
Donald RumsfeldWell, so be it. Nothing's perfect in life, so you have an election that's not quite perfect. Is it better than not having an election? You bet.
Donald RumsfeldLeave the President's family business to him. You will have plenty to do without trying to manage the First Family. They are likely to do fine without your help.
Donald Rumsfeld