《鬼谷子·本经阴符七术·损兑法灵蓍》
事件有偶然巧合，万物都有成有败。事物隐微的变化，不可不仔细观察。
事有适然，物有成败，机危之动，不可不察。
Events have accidental coincidences, everything has its successes and failures. The subtle changes in things cannot but be carefully observed.