Nèi xǐng bú jiù, fū hé yōu hé jù
内省不疚, 夫何忧何惧。
When a man examines himself and finds nothing to be guilty of, he has nothing to worry or to fear.
内省：introspection, self-examination;
不:not, no;
疚: guilty, regret;
何: what;
忧: worry, concern, anxiety;
惧: fear.