《资治通鉴·唐纪·唐纪五十》
大凡人之常情，穷困潦倒，就希望变革；身境痛苦，便图谋作乱，或许就是产生于此。
凡人之情，穷则思变，含凄贪乱，或起于兹。
In general, it is human nature that when people are impoverished and desperate, they will yearn for change; when they are suffering physically, they will plot rebellion. This could possibly be the reason why this situation has arisen.