Again we don't really know for sure.

I didn't know for sure oxytocin caused trustworthiness.

We don't know for sure, but there are theories.

Do you know for sure that Tom is behind that?

And in about 30 days we'll know for sure whether this works.

And I'm sure of it, you know?

You know spiderwebs? Sure, they are products of evolution.

I know they look silly. And sure they look silly.

And I'm not even sure we know what technology is.

Lord of the heavens and the earth and what is between them, if you know for sure.

Lord of the heavens and the earth and what is between them, if you know for sure.

I'm not sure, but I think I know where to go.

I don't know for sure, but I think at this point it's sort of almost embarrassing not to at least try.

Now you think to yourself because I know how you are you say, That sure is terrible for those poor people.

I don't know I'm not sure, but that's what I've done all the time.

Because they know that that is one sure way to do carbon free energy.

That's for sure.

I'm not sure cool is really the right word, but you know what I mean.

And so I started to think, well, you know, density, density I'm not sure if, you know, this was the right call.

She's correct for sure.

Now, when I talk about the northeast monsoon season, I'm sure many of you here know exactly what I mean, but perhaps some of you are not quite so sure.

Then all those deities whom they once used to call upon shall vanish and they will come to know for sure that there is no escape for them.

Then all those deities whom they once used to call upon shall vanish and they will come to know for sure that there is no escape for them.

And I'm sure he did that later. But that just indicates the state of mind, you know.

They were actually modeled on hotrod motorcycles of the 1960s, which I'm sure my mom didn't know.

But you know, it's kind of a collaboration between me and the fans, so I said, Sure.

And I'm sure you all know, this has created significant conflicts between the agricultural and environmental communities.

I can't say for sure.

Well I don't know yet, but I'm sure Najmuddin and his friends, they have it already in mind.

I'm sure most of you know from school physics that it's basically splitting a white light into colors.

But again, there were moments, for sure, there were moments of real, honest to God musical interplay, for sure.

Not me, that was for sure.

It'll go this way for sure.

Yeah, sure, I'm game for it.

It's going to rain, for sure.

It's great! You'll laugh for sure.

Mother will be furious for sure!

We know how fear feels, but I'm not sure we spend enough time thinking about what our fears mean.

But in the end, the only thing I could say for sure was, I don't know, and that just might be the most profoundly religious statement of all.

So anybody who's here today with your significant other, just turn over to them and swab their mouth, send it to the lab and you'll know for sure.

There are, I'm sure, enough divorced people in this room to know about the hostility, the anger, who knows what.

James Burke You'll be pleased to know, I'm sure, that there are several ways to create a HyperCard interactive video.

Again, we can't know, but we can be pretty sure that some form of symbolic communication must have been involved.

What we want to do is to make sure we have an effective, you know, an efficient kind of machine.

So I'm not sure if there are any in this photo, but I do know the fungus is down there.