Do not make emotional decisions

You should strive to make decisions that are logical, instead of emotional. Emotional decisions are rarely the correct ones. Instead try to look the situation from above. Play the situation, but remove yourself from the main role. Instead put some random person, but do not change the circumstances. Now, ask yourself what is the best move for the random person you've just placed. What should he do? How should he react? This helps a lot in making your decisions rational instead of emotional. Toranaga never really made an emotional decision, even if it was related to his closest circle.