He had more to say on the subject of human engineering.

And all without starting down the slippery slope of human genetic engineering.

Other forms of human genetic engineering are still theoretical.

Others were not so sure that the monkey experiment foretold human genetic engineering.

It was a cave, of natural rock, but had undergone much human engineering.

We've seen no signs of new human engineering, city building, or creativity for more than that millennium and a half.

"Give me one good reason why human genetic engineering would be a terrible mistake."

I told myself that this was merely a self-set problem in human engineering.

It was a masterpiece of human engineering: a man made entirely of men.

Today, of course, human engineering has made almost no landscape uninhabitable.