Under no circumstances will I permit my plans to be shattered by any foolish error on my part.

He would describe as "foolish errors" his earlier, only partly successful version of superunification.

-this was the time to avoid making any foolish errors.

It was then that I made my foolish error.

He tried to shake off his frustration at his foolish error.

She moved her hand carefully, so as to make no foolish error.

This was a foolish error because he also alerted Gregg to his presence.

That had been a foolish error, and one she would not repeat.

I am saying, your Grace, that this is a foolish error.

This is a foolish error against which the populace should be warned.