I loved reading this article. Yvonne Choquet-Bruhat's comments about the mathematics of General Relativity were beyond my understanding, but there is much to learn from her discussion of how her relationship with Einstein developed.

If you want to explore this topic from another point of view, get to know the work of Jeremy Bernstein, a theoretical physicist and long-time writer for The New Yorker. Bernstein also spent some time at the IAS when he was a young scientist, and has written a great deal about Einstein.