"Then why be such a stubborn fool and keep talking about it?"

Why all of a sudden had he acted like such a proud, stubborn old fool?

It is quite easy to be a stubborn fool, darling.

I told him he was a stubborn old fool to miss such a good party.

He shook his head as you would over a stubborn fool.

Worse, the stubborn fool might even devise a way to follow her!

This stubborn fool is beginning to anger me, he realized.

"Does the stubborn fool think he must take the entire world on his shoulders?"

I wonder what he could say about not trusting stubborn fools?

And I'm beginning to realize I've been something of a stubborn old fool.