I want to know the answer to the following question:
From whom did Catherine the Great receive assistance in her Enlightenment ideals via correspondence?
All the background I'm provided with is that "She used her own interpretation of Enlightenment ideals, assisted by notable international experts such as Voltaire (by correspondence) and, in residence, world class scientists such as Leonhard Euler and Peter Simon Pallas.". Is that enough to answer the question?
Answer: yes