" cannot believe in Western sincerity because it is invisible, but in feudal times we believed that sincerity resided in our entrails, and if we needed to show our sincerity, we had to cut our bellies and take out our visible sincerity. And it was also the symbol of the will of the soldier, the samurai; everybody knew that this was the most painful way to die. And the reason they preferred to die in the most excruciating manner was that it proved the courage of the samurai. This method of suicide was a Japanese invention and foreigners could not copy it! "

― , The Life and Death of Yukio Mishima