"After all," he pointed out, "you got the first germ of this ver-r-ry intriguing notion we have to discuss."

"An intriguing notion," Spock said, "but the resulting overloads will damage or destroy them as well."

Which is an intriguing notion in its own right.

One note of frustration has been sounded this morning by Peter Bone, who raises an intriguing notion:

It was an intriguing notion, but she didn't want to risk getting eaten by some ardent fool who didn't know where to stop.

Vanik had to confess that the opportunity to do so again presented an intriguing notion.

This is an intriguing notion, but ultimately fruitless.

This intriguing notion hearkens back to phrenology, but with a humorous twist.

It's an intriguing notion to pursue, don't you think?

Picard found the whole notion of a Q civil war intriguing and more than a little alarming.