Lowry Sensei and Parker Sensei told me about a series that had been compiled and was worth looking at. I guess at some point, someone asked Henry Copeland a 9th dan in the Fugakakai system "what are the principles of Aikido?" Then he started writing, others started writing, and what happened is a lovely draft full of nuggets of insights from some of the great artists of the American Tomiki scene.
Priciples of Aikido
Here is a little film Patrick Parker put together of a seminar with Henry Copeland Sensei. It is interesting watching the giant of a man. He is old, big and lumbering, and despite this looks gentle as a can be. You can see with every motion he moves to change the relationship and posture of his uke - mojo is there. From what I have seen he deeply impresses people he trains with with his skill and insights.