Greek or Latin?

If I were asked which, of the Greek and Latin languages, is to be preferred, I would answer neither; my opinion is that they both should be used: Greek for anything that Latin cannot express, or would not offer equivalent expression for, or one less exacting; I would have Greek serve only to fill in the gaps in Latin, and this simply because familiarity with Latin is more widespread: for I concede that if we were to choose on the grounds of richness and abundance, there would be no hesitation...