Stephen Petranek At first, it all seemed a little fantastical to me, but after challenging a lot of these ideas,

So, we're used to not challenging religious ideas, and it's very interesting how much of a furor Richard creates when he does it.

Tremendously challenging.

That was challenging.

Why so challenging?

You know the uni is the most challenging, so number ten is challenging.

Challenging gender based violence

Not a challenging task.

And this is a very challenging idea. It's a very challenging idea to mainstream media.

So, we're used to not challenging religious ideas and it's very interesting how much of a furor Richard creates when he does it. He meant me, not that one.

A bit more challenging, right?

So this is more challenging

Are you challenging my orders?

A bit more challenging, right? (Laughter)

It's not very challenging any more.

And that's challenging because it's easy.

Your job needs to be challenging.

This is challenging work to do.

Something is very challenging to me.

Ideas are... ideas are important.

But striking the proper balance is challenging.

That will be particularly challenging for Bernanke.

That is an assumption that needs challenging.

Emerging and challenging issues deriving from implementation

DM She's very tough it's most challenging.

Skepticism, because you must always be challenging.

I'm challenging you to find you value

And people reinventing themselves in challenging times.

It's this immensely exciting and challenging problem.

Listen, I'll teach you a challenging trick.

They are challenging forces they cannot control.

Miss Templeton, please stop challenging your witness.

These are great ideas, village level ideas.

Darwin's ideas and Mendel's ideas blending together.

In challenging groups like Al Qaeda, they must understand that they are engaged in a war of ideas winning the hearts and the lifestyles of societies is the only way to win that battle.

Finally, Japan s external environment today is more challenging.

However, the situation in Cité Soleil remains challenging.

This session will undoubtedly be a challenging one.

It would be a challenging and difficult task.

In Japan, they say that sushi is challenging.

But that makes an interpreter's job very challenging.

This task proved more challenging than I hoped.

The societal one is a lot more challenging.

I'm challenging your all to go conference(library)

Transporting wave generated electricity inland would be challenging.