For example, human will educate the next generation not only about survival skills but also the way of life. Human brain also operate in two main parts, one is the logical part and the other one is the emotional part. Animals may also have emotional part but their logical part is not as developed as us, so human may raise moral and ethical questions. In this article, Mr. Herzog noticed that he once painted himself into a moral paradox that feeding his boa constrictors rodents are more morally preferable and permissible than feeding the bodies of the kittens to it. Ultimately, in the animal world, the more important question in their mind is whether they got sufficient quantity of food rather than what kind of meat would be permissible. After comparing the two, what does it mean to be human then? Hal Herzog gave many examples of what makes human in our relation with animals. Human have a brain, just like all the animals, but what makes us different is we are intellectually able to make contradicting judgments and thinking, and on the contrary, animals thinks in black and white. Although our more developed intelligence sometimes make our lives complicated and force us unable make decisions; however, these contradictions distinguish the level of intelligence between animals and us. Therefore, human beings are unique unlike animal because we find contradicting issues and thinking solutions to solve our problems. Our world is not only the clear black and white sides, we always see the world in shades of gray. Both author and I believe that even though there are so many similarities between us and animals, what makes us human is our paradoxical relationship with them, for example, we love them, but we also eat them. It is difficult to clearly delimit our relationship with animals because of the gray side between emotional and logical parts.