These were the certain proof and reminder that Hawaii was paradise.

Jules had more than a faint suspicion who that someone had to be, but as yet there was no certain proof.

"Open-minded enough to examine certain proof if it were offered to you?"

I do indeed," he replied, "since it is a certain proof that the world does not understand you.

He did all of that for Chaeron's sake, to show certain proof, incriminating reactions.

If it was there, it was almost certain proof that something had happened to her.

There would seem to be certain proof of that already.

The existence of this toponym is a certain proof of their past presence in the area.

There is no certain proof that he remained at Cerne.

"Not even if it would give you certain proof?"