seize on something
seize upon something

No matter how small the difference is, people will seize upon it.

Another thought came to him, and he seized upon it.

She seized upon the one point that meant anything to her.

At once he seized upon the weak point in my story.

I should like here to seize quite specifically upon one particular point.

There is an opportunity here that should be seized upon.

The data has been seized upon as evidence that Congress set the bar too high.

I seized upon every opportunity to apply my new knowledge.

"It's not like him to have to seize upon another man's speech to make one of his own."

I think people were just dying to seize upon anything they could find.