Curtains and carpets were renewed.

Her words renewed my courage.

So there's the optimism.

Have you renewed your prescription lately?

Inwardly, we are being renewed daybyday

So optimism changes subjective reality.

Renewed shall be blade that was broken

If I can't get my license renewed...

I'm going to talk to you about optimism or more precisely, the optimism bias.

I had my driver's license renewed last month.

I had my licence renewed a week ago.

I had my driving licence renewed last month.

Life springs renewed in the breath of Spring...

Life springs renewed in the breath of Spring...

That very optimism is uniquely American.

Just looking at them you feel yourself being renewed,

And there are great moments of optimism.

Puffing and panting we continued to run with renewed vigor.

Medicins Sans Frontieres, that renewed our commitment to disaster relief,

My father chose not to disturb my optimism.

Instead, there was a litany of astonishing optimism.

But there's also a wonderful case for optimism.

Come on. Let's keep a little optimism here.

The group of senators doesn't share your optimism.

...Just the perfect combination of optimism and naivety.

You probably know, some of you, that cells are continually renewed.

There is considerable optimism that the economy will improve.

So all in all, optimism has lots of benefits.

Perhaps we should say the same thing about optimism.

However, undeterred due to my teenage optimism (Laughter) (Applause)

Certainly, nothing can give you more optimism than that.

You shall live to see these days renewed and no more despair.

But private optimism about our own personal future remains persistent.

Optimism leads to success in academia and sports and politics.

And maybe the most surprising benefit of optimism is health.

Optimism is sometimes characterized as a belief, an intellectual posture.

But now let's look at the case for optimism. (Laughter)

And I therefore believe that optimism is what drives architecture forward.

And this hope, this optimism, endured a year of turbulent transition.

Right then I felt a sudden burst of joy and optimism,

This is fascinating. You probably know, some of you, that cells are continually renewed.

In fact, without the optimism bias, we would all be slightly depressed.

So they have adjusted the 2012 Olympic budget for the optimism bias.

Secondly, we need to aim off of the optimism of the generals.

Here at the end of round one I'm gonna recommend cautious optimism.