You should not have a favorite weapon. To become over familiar with one weapon is as much a fault as not knowing it sufficiently well. You should not copy others, but use weapons which you can handle properly.
Both in fighting and in everyday life you should be determined though calm. Meet the situation without tenseness yet not recklessly, your spirit settled yet unbiased. Even when your spirit is calm, do not let your body relax, and when your body is relaxed do not let your spirit slacken.
Excerpt from The Book of Five Rings