יְקַר הַמְּצִיאוּת

ביטוי (אנגלית)

The Preciousness of Reality/ rare/ scarce/ hard to come by

הגדרה (אנגלית)

Very valuable; something that is difficult to obtain.

("He tapped the goblet and said, 'I see that you are spies, and a thing like this, which reveals all the secrets, is priceless and cannot be appraised even with Ophir gold' - Beit HaLevi, Genesis 5, and also: 'This extensive library... it contained not a few of the earliest Jerusalem printings, among them polemical pamphlets of great value' - Hayyim Beer / Notsot, 207)