3 Metaphors for prove

"'Not proven' is the verdict which most geologists would return."

"'Prove' is rather a strong word, isn't it?"

And that no care ought to be taken, no choice made, no maintenance provided or considered; because (now and then in an Age) one, miraculously, beyond all hopes, proves learned and useful; is a practice, whereby never greater mischiefs and disesteem have been brought upon the Clergy.

3 Metaphors for  prove