Others argued that a change was required solely on ethical grounds.

Doubts have been raised both on ethical and scientific grounds.

Some object to such theories on ethical, religious, political, or scientific grounds.

He declined the prize on ethical grounds in an open letter to the media.

The Bush administration didn't just leave the moral and ethical high ground.

Pakistan's new team could even claim to be better than the one they have replaced, and not simply on ethical grounds.

Most of these would have justified their acts on ethical grounds.

Would it not be too easy to ban promising technology with great potential on ethical grounds?

The main thing, without a doubt, is not to tamper with nature on ethical grounds.

But let's not debate it primarily on ethical or moral grounds.