[孝悌忠信, xiào tì zhōng xìnㄒㄧㄠˋ ㄊㄧˋ ㄓㄨㄥ ㄒㄧㄣˋ] Confucian moral injunctions of fidelity; piety to one's parents, respect to one's older brother, loyalty to one's monarch, faith to one's male friends#245758
[替古人担忧 / 替古人擔憂, tì gǔ rén dān yōuㄊㄧˋ ㄍㄨˇ ㄖㄣˊ ㄉㄢ ㄧㄡ] to fret over the worries of long-departed people (成语 saw); to worry unnecessarily; crying over spilt milk; often used with negatives, e.g. no need to worry about past issues#265439