I wouldn't want you to make a foolish assumption about your Captain.

The analysts had made foolish assumptions, reasoned from them with undoubtedly flawless logic, and ended up worse off than if they'd done nothing at all.

I didn't understand then how foolish quick assumptions like that are.

The whole plan seemed to him to be filled with long chances and foolish assumptions.

A foolish assumption, he saw now: the abyss was more or less circular as best he could tell through the mist.

This in itself, he supposed, was a foolish assumption.

"A large and foolish assumption," Medric said as he turned away.

But that was a foolish assumption, a romanticized version of family life.

I'm making foolish assumptions, letting my temper run away with me, and using pejorative language.

What had happened to his mind down there to make a foolish assumption like that?