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I'm a big believer in human nature.

One of the things I believe in is a sense of human nature.

I am passionate about human rights.

There is a great deal of human nature in man.

Human nature fascinates me.

With violence, as with so many other concerns, human nature is the problem, but human nature is also the solution.

I am a man, and whatever concerns humanity is of interest to me.

My opinions about human nature are shared by many psychologists, linguists, and biologists, not to mention philosophers and scholars going back centuries.

I'm an animal rights activist because I believe we won't have a planet if we continue to behave toward other species the way we do.