The Ox's character is to labor with all it has, without quibbling or wasting words. Oxen have lived with Chinese people for a very long time, and they've become as one; once the plowing started, it lasted 5000 years.
牛的「個性」﹘﹘拚命乾活、不計較、不多言，讓牛與中國人生活長期來合而為一，一耕五千年。