So what keeps me fired up is that I know that we cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event -- Seattle, WA

So, look, this is what I tell myself: We cannot turn back now.

WHITEHOUSE: The White House

So this is what I tell myself every morning: We cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event -- Sterling, VA

So when I get tired, I just think about the fact that we cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at Campaign Event

However, Medicare does not ration based on pre-existing conditions and cannot turn down applicants based on health history.

FORBES: Rationing Healthcare: Obama Versus Ryan

Web service providers cannot turn a blind eye to specific infringement violations, but need not actively seek out infringers.

FORBES: Key Takeaways From Google's Big Win Over Viacom

So this is what I tell myself: We cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

So, look, this is what I know: We cannot turn back now.

WHITEHOUSE: The White House

You cannot turn on our television or radio without seeing and hearing them.

NPR: Campaign Attack Ads Call 'Facts' Into Question

And what we really, truly know is that we cannot turn back now.

WHITEHOUSE: The White House

So, see, what I tell myself is that we cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event -- Reno, NV

We cannot turn this fledgling recovery into sustained growth with policies and solutions that ignore a third of our job creators.

FORBES: The Hidden 33%: How Mid-Sized Companies Are Hit Hardest By Tax Hikes

So what give me passion, what keeps me pumped up is the belief and understanding that we cannot turn back now.

WHITEHOUSE: The White House

The American panel is also aware that if Tehran cannot turn down the heat in Iraq, it certainly can turn it up.

BBC: NEWS | Middle East | Iran has limited influence in Iraq

We cannot turn in a heated instant on a friend like that, no matter how vexed our friendship may have sometimes been.

FORBES: Obama and Egypt: When Leading Means Holding Back

Companies cannot turn solid profits much longer with that type of competition.

CNN: Still On A Roll?

This cannot turn into another long-term military deployment with no clear plan.

NPR: Bush Calls for Troops, Funds to Secure Border

So what I tell myself is that we cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

Regrettably, Iran is not responding to the many constructive proposals that have been made and we cannot turn a blind eye to this.

WHITEHOUSE: Signing of New START Nuclear Arms Treaty with Russia

And if his companies cannot turn a profit at some point, he is going to start laying people off at his army of enterprises.

FORBES: Oil Shares Crashing, Eike Batista Fast Becoming Brazil's Poorest Rich Man

So I tell myself every day, we cannot turn back now.

WHITEHOUSE: The White House

So what I know is that we cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

Every day I tell myself: We cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

But bringing in private firms cannot turn things around immediately.

ECONOMIST: Brazil��s economy

Two better-known alternatives, antisense and RNA-interference, the latter of which is being used now by Monsanto, can silence or shut down genes but cannot turn them on or make them louder.

FORBES: Magazine Article

So I tell myself, we cannot turn back now.

WHITEHOUSE: The White House

"Foreign-based hedge funds that trade on the U.S. markets cannot turn a blind eye to compliance with U.S. federal securities laws, " said Antonia Chion, associate director in the SEC's division of enforcement.

FORBES: Get Shorty

We cannot turn back now -- absolutely unacceptable.

WHITEHOUSE: The White House

We know that we cannot turn back now.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

"America, we cannot turn back, " Obama said.

NPR: Obama Accepts Nomination With Sweeping Speech