The Founder of Aikido:

Morihei Ueshiba, 1883 - 1969

Some O'Sensei's thoughts
 

Aikido techniques:

The techniques of the Way of Peace change constantly; every encounter is unique, and the appropriate response should emerge naturally. Today's techniques will be different tomorrow. Do not get caught up with the form and appearance of a challenge. The Art of Peace has no form - it is the study of the spirit. [The Art Of Peace, Ueshiba, M., Stevens, J. Ed. -    p. 113]

Ultimately, you must forget about technique. The further you progress, the fewer teachings there are. The Great Path is really No Path. [The Art Of Peace, Ueshiba, M., Stevens, J. Ed. - p. 114]