"Well, two hypothetical people go out and alter a cigarette billboard."

On the other hand, people alter their physical appearance all the time.

As if a law could get people to alter their language.

Those are the same three centuries in which people have most extensively altered the global environment.

But it is perhaps easier and equally reasonable to treat the depression itself so that these people can alter their own lives.

I have seen people literally alter their entire lives around getting out of driving.

Now, though, I think people can alter that first impression.

"But people themselves alter so much, that there is something new to be observed in them for ever."

What if people can take a pill or alter their genes so that they can look and feel 60 at age 110?

The psychological processes involved when people alter their behavior are not something we have to think about.