When one has made a decision to kill a person, even if it will be very difficult to succeed by advancing straight ahead, it will not do to think about going at it in a long roundabout way. One's heart may slacken, he may miss his chance, and by and large there will be no success. The Way of the Samurai is one of immediacy, and it is best to dash in headlong.
Yamamoto TsunetomoIt is better not to become acquainted with men about whom you have formerly had doubts. No matter what you do, they will be people by whom you will be tripped up or taken in.
Yamamoto Tsunetomo