In my opinion, it is not a problem to eat meat because killing other animals is very natural action for living things on earth to survive, especially for meat-eating creatures. A lot of living things on earth kill other creatures to take nourishment which is essential to live. There is no reason why only human beings must not kill and eat other animals to survive. However, things are quite different as to our using leather. From the reason written above, we cannot justify using leather. This is because our using leather does not necessarily need to survive. It is just luxury. We human beings should not kill other creatures only to satisfy our desire. Then, watching Mr. Andras Forgacs’s TED talk, we can find one of the possible ways to handle this situation. Leather products can be made by biofabrication without injuring animals such as cows or alligator. Human beings can produce leather by scientific process without depriving living things of their lives. This is an ideal way we can respect animal rights and satisfy our wants at the same time. However, this scientific process may be able to bring problems. The more scientific technique develops, the more advanced things human beings can produce. If human beings are able to create living things thanks to development of science technology in the future, an ethical problem will arise, “What is the definition of the living things?” I doubt we can tell what is living thing and what is not when we produce lives by science technology. Are natural animals genuine and are man-made animals not? The problem is that it is thought that our killing living things is guilty and using our product is not. Indeed it is an ethical problem for us to kill animals, but why can we say that killing animals we produce is not guilty? Using artificial leather can bring such an ethical problem. I cannot imagine how we can solve the problem, but I can say that we human beings cannot get anything without any sacrifice. If we human beings think genuinely that we should not sacrifice any other creatures, we have no choice but to conclude that we should not use any leather products. (369 words)