There is no secure logical ground for condemning him.

It is considered as the logical ground of inference which is one of the means to knowledge.

Lake wrote an enthusiastic defense, "supporting Kissinger's proposition on logical grounds."

Ahroe, deal with them on wholly logical grounds if you can.

This part appears to contain a defense of Spiritism on empiric and logical grounds.

Being a Vulcan, he made it on purely logical grounds.

Yet if one of these savages has all the logical ground for his beliefs taken away, he doesn't stop believing.

He has been focusing on short skirts for the last five years on purely logical grounds.

Realizing this, I give you a choice, upon purely logical grounds, thus:

I also disagree with him on logical grounds.