Luo Guanzhong, Translation:Romance of the Three Kingdoms…
“ It was only when Li Jue and Guo Si heard that Li Meng and Wang Fang had been killed by Ma Chao, that they began to believe that Jia Xu had the gift of foresight. From then on, they began to make heavier use of his strategies. They concentrated their efforts on tightly defending strategic military positions. They allowed the enemy to initiate the fighting, but did not respond in kind. ”
