This is a translation of the Aikido principles according to Tamura Nobuyoshi shihan elaborated by Rainer Dirnberger and Heidelinde Dirnberger (January 2011). The original version can be found here, further information is available here as well. I only added the Japanese kanji and some basic meanings to them in the headlines below.
Preface
A special feature of Aikido is that the philosophical principles (ethics, conception of man, non-violence, etc.), the psychological principles (attitude, motivation, emotion, etc.) and the physiological principles (posture, breathing, relaxation, etc.) are directly applied together in the learning and execution of Aikido techniques. Philosophical and psychological assumptions do not represent a theoretical „superstructure“, detached from the physical reality of training in the dojo. This is possibly the most essential Aikido principle.
Aikido Yuyashinkai 