杞人忧天
(qǐ rén yōu tiān)
乐天知命
(lè tiān zhī mìng)
反躬自问
(fǎn gōng zì wèn)
反求诸己
(fǎn qiú zhū jǐ)
乐天安命
(lè tiān ān mìng)