Christian Moses wrote:
Ellis Amdur did some interesting analysis of some of OSensei's speeches on Aikido Journal.com. Made for some interesting reading.
Yes. His book, Dueling with Osensei, is good, too.
But context is much. For background stuff, Abe's Weaving the Mantra is very insightful, as are other non-aikido works by Grappard, Rambelli, et al. Happy to provide references if you're inerested.