I have lived in the United States and I know the might of their industrial complex. The United States is a sleeping giant and I am afraid that our attack has awakened it.
Quoted in "Energy Technology XI: Applications and Economics" - Page 988 - Richard F. Hill - Science - 1975
The success of our surprise attack on Pearl Harbor will prove to be the Waterloo of the war to follow. For this reason the Imperial Navy is massing the cream of its strength in ships and planes to assure success.Chuichi Nagumo
I-uh-have the utmost respect for Yamamoto-san. If it had not been for him, there would be no naval aviation. However-the most brilliant man can occasionally make a mistake.Chuichi Nagumo