Sentence examples similar to a precious quantity from inspiring English sources

What is the precious quantity that we stand to lose, that keeps so many people with radical concerns from doing something radical?

I asked Al Kalin, a man in his mid-sixties who has farmed by the sea his whole life, what it felt like to have access to a precious resource in such great quantities.

The virtual variables can be seen as local mappings of the target variables onto an input space, and provide a precious insight on the contribution of the different input quantities.

A precious stone.

That is a precious gift.

"I lost a precious soul".

"They're a precious commodity".

Power is a precious commodity.

What a precious picture".

A precious city boy.

A precious metal?