It is said that one should not hesitate to correct himself when he has made a mistake. If he corrects himself without the least bit of delay, his mistakes will disappear.
Yamamoto TsunetomoIt is a principle of the art of war that one should simply lay down his life and strike. If one's opponent also does the same, it is a even match. Defeating one's opponent is then a matter of faith and destiny.
Yamamoto TsunetomoWhen someone is giving you his opinion, you should receive it with deep gratitude even though it is worthless. If you don't, he will not tell you the things that he has seen and heard about you again.
Yamamoto Tsunetomo