孝悌忠信

xiào tì zhōng xìn

piety to one's parents, respect to one's older brother, loyalty to one's monarch, faith to one's male friends

Confucian moral injunctions of fidelity

孝

xiào

filial piety or obedience

悌

tì

to do one's duty as a younger brother

忠

zhōng

loyal; devoted; faithful

信

xìn

letter