Computer is sad that humans have not spoken for fifteen thousand years.

Natural language processing gives machines the ability to read and understand the languages that humans speak.

Of course, we've never found a settlement where the humans spoke anything but our language.

But there were many places where the humans spoke only skyspeech or earthspeech.

One-Eye spoke again, presumably telling his chief that the humans didn't speak their language.

"It's simply following a program, reciting words it has heard humans speak."

Their humans spoke to them in what was apparently cat-English, using high-pitched voices that made my own head hurt.

There were also differences: humans can speak, for example.

Why is it you humans always speak of evil as something that exists outside of yourselves?

This was the great Change of which humans still speak, and it divided the Old World from the new.