敦品励学 (敦品勵學) dūnpǐnlìxué

dūnpǐnlìxué noun development of sincerity and good moral character
Domain: Literary Chinese 文言文
Notes: 敦品 is short for 敦厚品德 (ABC 'dūnpǐnlìxué' 敦品励学; Guoyu '敦品勵學')