mental balance

Her boyfriend would later say that she began to lose her mental balance in September of last year.

Is it any wonder,” asked Smalley, that so many settlers “lose their mental balance?

It was too much for his mental balance and he took a revolver from his pocket, shot both his partners dead, and then shot himself.

"I will, of course," Wade said slowly, trying to catch his mental balance.

He was certain that he himself would lose his mental balance if the blindfold wasn't soon removed from his mental vision.

These prejudiced ideas were really the outcome of a peculiarly sensitive brain, lacking normal mental balance.

A certain—I don't know what to call it—but, in short, proper mental balance and steadiness.