In aiki keiko, the most important things are practising ki-gata, and doing tanren-ho. And Ki-gata absolutely have to be practised [in a spirit of] shinken-shobu. Because in budo, of course, there has never been any such thing as a “sporting” contest. Any contest that does occur is a life and death struggle. And yet, seeking a contest for no reason is a terrible, terrible mistake. Truly: destroying life, shedding blood, that is the biggest mistake a human-being can make.
– – – O’Sensei, probably audio-recorded by by Masatake Fujita, transcribed by Sadateru Arikawa Shihan, published in Aiki-Shinzui, p.161