学而不厌，诲人不倦
xué'ér​bù​yàn​huì​rén​bù​juàn

to study tirelessly and teach with endless enthusiasm

学而不厌，诲人不倦 學而不厭，誨人不倦 xué'ér​bù​yàn​huì​rén​bù​juàn
to study tirelessly and teach with endless enthusiasm
Study without feeling tired and teach others without becoming weary; a classical idiom from the Analects of Confucius describing a dedication to lifelong learning and generous learning.