明理

dú shū shǐ rén míng lǐ

读书使人明理。

Reading makes men reasonable.

tā duì xǔ duō shì wù dōu tōng dá míng lǐ

他对许多事物都通达明理。

He is so sensible about many things.

míng lǐ bù xū yào xì jiǎng

明理不需要细讲。

You don't have to give details on an obvious truth.