When things reach their worst, they will start to get better; after extreme adversity, good fortune follows, symbolizing that the darkest hour is just before the dawn.
他失业很久，生活一度非常艰难，但他坚信否极泰至，最终通过努力找到了满意的工作。
He was unemployed for a long time and his life was once very difficult, but he firmly believed that when things reach their worst, they will start to get better, and eventually he found a satisfactory job through his efforts.
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