德疏才薄德薄才疏dé shū cái bó

be lacking in both virtue and talent
❍ 卢俊义道： “小弟～，怎敢承当此位！ 若得居末，尚自过分。” (《水浒全传》853) “I’m laking in both virtue and talent，” Lu protested. “I wouldn’t dare to assume such a position. Even if I were given the lowest rank,it would be too much.”