人类总是很自大，自以为是，他们从来没有想过对于地球而言，他们和地球上的一只蚂蚁，并没有什么不同。
Human beings are so arrogant and self-righteous that they never think that they are no different to the Earth than an ant on it.[Audio]

Question

人类总是很自大，自以为是，他们从来没有想过对于地球而言，他们和地球上的一只蚂蚁，并没有什么不同。
    Human beings are so arrogant and self-righteous that they never think that they are no different to the Earth than an ant on it.[Audio]

Answer

你改的非常棒，也许这就是人类翻译和机器翻译的区别
You did a great job. Maybe that's the difference between human translation and machine translation

Answer

The negative in the sentences didn't quiet make sense to me, so I changed your sentence. Let me know if that fits what you meant to say.

"Human beings are so arrogant and self-righteous that they don't realize that they aren't any different to the Earth than an ant on it."