They are always glad to see us. They are with us in all our humors. They are merry when we are glad, sober when we feel solemn, and sad when we are sorrowful.
猫狗总是高兴见到我们,陪伴着我们每一种心情:我们快乐时,它们也欢欣;我们严肃时,它们也沉静;我们悲伤时,它们也难过。
— Jerome K. Jerome · The Idle Thoughts of an Idle Fellow · On Cats and Dogs —