When setbacks come, one should reflect on oneself.
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From 《礼记·乐记》: 好恶无节于内，知诱于外，不能反躬，天理灭矣 (if one cannot turn inward and reflect, heavenly principle is lost). A core Confucian practice - 省 here is xǐng, 'to examine'.
mistakes
省 here is xǐng (3rd tone, to examine), NOT shěng (to save). Compare 反省 with the same meaning.
