I may be wrong but Rabi I think is one of the least known scientists even though he was one of the most important ones in the 20th century. He won the Nobel Prize for his discovery of nuclear magnetic resonance! In this book, you can find out how difficult it was do study the magnetic resonance in those years with the instrumentation they had. I still can't believe that people built their own instruments, came up with theories/techniques/experiments and did precise measurements! Because the book was written when he was alive and with his collaboration, there are lots of quotes from him. I will compile my notes and paste them here soon.