Master Morihei Ueshiba (1883 - 1969)
Aikido students refer to him as O-Sensei ("Great Teacher").
O-Sensei sought out and studied under masters in many traditional martial arts, eventually becoming expert at a number of styles, such as Jujutsu (unarmed combat), Kenjutsu (fencing/sword) and Sojutsu (spear fighting).
O-Sensei taught Aikido as a creative mind-body discipline and a practical means of dealing with aggression and as a way of life that fosters fearlessness, wisdom, love and friendship. He believed that its principles of reconciliation, harmony, cooperation and empathy could be applied bravely to all the challenges we face in life: in personal relationships, business and out interactions with nature.
O-Sensei continued to practice and teach Aikido into his old age. He was still giving public demonstrations of Aikido at the age of 86 years, four months before his death. After he passed away on 26 April, the Japanese Government declared Morihei Ueshiba a National Treasure of Japan.