I found these on the net, and I dig them:
The Unknown
As we know,
There are known knowns.
There are things we know we know.
We also know
There are known unknowns.
That is to say
We know there are some things
We do not know.
But there are also unknown unknowns,
The ones we don't know
We don't know.
Glass Box
You know, it's the old glass box at the--
At the gas station,
Where you're using those little things
Trying to pick up the prize,
And you can't find it.
It's--
And it's all these arms are going down in there,
And so you keep dropping it
And picking it up again and moving it,
But--
Some of you are probably too young to remember those--
Those glass boxes,
But--
But they used to have them
At all the gas stations
When I was a kid.
A Confession
Once in a while,
I'm standing here, doing something.
And I think,
"What in the world am I doing here?"
It's a big surprise.
The Situation
Things will not be necessarily continuous.
The fact that they are something other than perfectly continuous
Ought not to be characterized as a pause.
There will be some things that people will see.
There will be some things that people won't see.
And life goes on.
Clarity
I think what you'll find,
I think what you'll find is,
Whatever it is we do substantively,
There will be near-perfect clarity
       As to what it is.
And it will be known,
And it will be known to the Congress,
And it will be known to you,
Probably before we decide it,
       But it will be known.