Enemies were teachers in disguise.

The greatest happiness of life was to stand at the difficult border between success and failure.

Fighting isn't all there is to the Art of War. The men who think that way, and are satisfied to have food to eat and a place to sleep, are mere vagabonds. A serious student is much more concerned with training his mind and disciplining his spirit than with developing martial skills.

I wouldn't say Musashi is ordinary. But he is. That's what's extraordinary about him. He is not content to rely on whatever natural gifts he may have. Knowing he is ordinary, he is constantly trying to improve himself. No one appreciates the agonizing effort he's had to make. Now that his years of training have yielded such spectacular results, everybody's talking about his 'God-given talent.' That's how men who don't try very hard comfort themselves.

Enemies were teachers in disguise.

It does happen, of course, that the priesthood has been on bad terms with womankind for some three thousand years. You see, Buddhism teaches that women are evil. Fiends. Messengers of hell. I've spent years immersed in the scriptures, so it's no accident that you and I fight all the time.

Great character is forged through hardships.