One must know the so-called 'lesson of a downpour. A man, caught in a sudden rain en route, dashes along the road not to get wet or drenched. Once one takes it for granted that in rain he naturally gets wet, he can be in a tranquil frame of mind even when soaked to the skin. This lesson applies to everything.
Yamamoto TsunetomoIt 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 Tsunetomo