Surely the Emperor will repay the one who is responsible for the very existence of the Romulan race.

What are we doing here if the existence or non-existence of the human race is to be decided almost 300 light-years from here?

It is nothing less than the existence of the human race that depends on our work: our real work, you comprehend ?

Outside these peaceful walls, the future existence of the human race was threatened.

The existence or extinction of the human race is of interest to them only in how it applies to the project.

You may also remember him as one of the team of young warriors who defeated the enemy that threatened the existence of the human race.

He would return; he was planning his attack on these people, on me, on the whole future existence of the human race.

The continued existence of the human race.

But it came in smaller doses which didn't threaten the existence of the whole race.

We are confronted by the degradation of our country, brought on by the fierce struggle for existence of the human race.