Let me see that in one single act of man on earth.

But I cannot remember a single act of simple kindness.

It could not have come into existence in a single act of chance.

But that was all past and done; no single act could be recalled.

Besides, what single act set itself apart from any other?

So much had come to pass in the wake of that single act.

I do not know of one single noble act ever performed by him.

He, of all people, should know the difference between the truth and the myth that grew around a single act.

Yet this single act of discrimination would have an impact far beyond the capital's cultural life.

And there is no single act any of us can take that would do more to save lives than to fight smoking.