I. Masakatsu Agatsu, True Victory is victory over Oneself

II. Principle of Aiki (Oneness)

III. Range of Effectiveness

IV. Principle of Circularity

V. Principles to Unify Mind and Body

A. Keep One-point
B. Controlled Relaxation
C. Settle Down
D. Let Your Ki Flow

VI. The Spirit of Loving Protection for all Things

VII. Shodo-O-Seisu, Control the First Move

VIII. Hitoashi Yoete, One Step Aside

IX. Ki no Myoyo o Tadsshiku, Correct Usage of Ki

Descriptions of most of these principles can be found at The Seidokan Aikido World Headquarters.