Wash a dog, comb a dog, Still a dog, remains a dog.
本性难移。
No matter how much we like honey, or how much we have read about the uncanny sense of direction which bees possess, we have a horror of being stung.
不管我们多么爱吃蜂蜜,或读过多少关于蜜蜂具有神秘的识别方向的灵感的书,我们仍然十分害怕被蜂蜇。