既往不咎 let bygones be bygones
金无足赤,人无完人 Gold can't be pure and man can't be perfect.
金玉满堂 Treasures fill the home
脚踏实地 be down-to-earth
脚踩两只船 sit on the fence
老生常谈,陈词滥调 cut and dried, cliché
礼尚往来 Courtesy calls for reciprocity.
留得青山在,不怕没柴烧 "Where there is life, there is hope."
马到成功 achieve immediate victory; win instant success
名利双收 gain in both fame and wealth
茅塞顿开 be suddenly enlightened
没有规矩不成方圆 Nothing can be accomplished without norms or standards.
弄巧成拙 be too smart by half; Cunning outwits itself.
拿手好戏 masterpiece
赔了夫人又折兵 throw good money after bad