折疑論 3.35

3.35

失德而後仁（仁者有愛利之心。故德衰以行仁。故曰失德而後仁）。

when virtue is lost, benevolence appears; (The benevolent mind holds loving and beneficial intent. Thus when virtue declines, benevolence is practiced; therefore it is said, 'When virtue is lost, benevolence appears.')