shēn tǐ lì xíng
to practice what one preaches (idiom)
lì xíng
to practice diligently
to act energetically
hào xué jìn hu zhī , lì xíng jìn hu rén , zhī chǐ jìn hu yǒng
to love learning is akin to knowledge, to study diligently is akin to benevolence, to know shame is akin to courage (Confucius)