He said there was only one rational explanation for 1080's continued use.

Asset prices often do strange things in ways that defy rational explanation.

It becomes a cycle... There's not really a rational explanation, he said.

There is of course a rational explanation for each of these wonders.

This seems to us the only rational explanation of the Treasurer's conduct.

This account is a very probable and, in fact, the only rational explanation.

Canonisations depend on miracles and miracles are matters not capable of rational explanation.

There wasn't any rational explanation, and yet how could it be?

In his works there is not one rational explanation out of a thousand.

Because something of that nature would seem to be the only rational explanation.

But excuse me for speaking plainly-therational explanation is thrown away on me.

What more rational explanation could ingenuity discover on the spur of the moment?

Even if Dr. Luys's experiments were genuine this would be the rational explanation.

I don't know what happened down there either, but trust me-there'sa rational explanation.

Maybe because there was no possible rational explanation for it.

The fact was he could provide no rational explanation for why he was here.