The absence of evidence is not necessarily the evidence of absence

Oh, Lord. I didn't mean to say anything quotable.

I don't think we'll discover anything, myself. I think what will happen is we'll discover people who will tell us where to go find it. It is not like a treasure hunt where you just runaround looking everywhere hoping you find something. I just don't think that's going to happen. The inspectors didn't find anything, and I doubt that we will. What we will do is find the people who will tell us.

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.

If you look ahead 10 years, I wouldn't be a bit surprised if the people of Russia had become fans of missile defence.

The country cannot afford amateur hour in the White House.

It is worth reminding that being president is a tough job for anybody, and particularly so in the information age. There's such a glut of information. Anything a president says or does is picked up on the Internet or the 24/7 news media and criticized almost instantly. Leaders persuade through their words and as such their words need to be measured and well chosen. It is a tough job.