The existence of this double standard seems to drive the poor girls half frantic.

Never mind that its very existence seemed out of step with this morning-after moment.

"The very existence of this planet seems to defy all the odds."

Its existence did not seem to occur to him.

The existence therefore of man in the quaternary period seemed to become daily more certain.

Their existence seemed to confirm that this was the border, and he decided to go for it.

Even though it had been just a few years, his existence on that world seemed a lifetime ago.

But its mere existence seems like a minor miracle to people who remember the recent past.

Our very existence seems to be either a miracle or a fluke.

That campaign was viewed as a political watershed for a nation whose very existence seemed once again in peril.