“If you know yourself and know the enemy, in a hundred battles you will not be in peril” … “information cannot be had from inference or divination, it must be had from people” … quite a lot of good romance advice in Sun Tzu actually
Kinda off topic, but I like how, as the quality of the art improved in this manga, so did the fashion sense of the author. When this character was introduced was when I really started to take note of how good the fashion was getting.