Fán shǒu zhàn zhī dào, nèi shí jīngshén, wài shì ān yí. Jiàn zhī shì hǎo fù, duó zhī shì jù hǔ
In all ways of hand combat (using sword/ jian), internally the spirit is full, the outside manifests a calm appearance. Appear as a friendly woman, (then) seize the moment like a threatened tiger.
From Spring and Autumn of Wu and Yue 吴越春秋
Image is of Lady Sun (孫夫人) for more about her see- https://en.wikipedia.org/
Translation and Commentary by — Scott M. Rodell