He should be of sound mind while making a contract.

Straight forward thing is you need to be of sound mind, that's not difficult.

Must be of sound mind and physical health, as determined by a court.

He appears to be of sound mind and strong spirit.

Your mother, a wonderful woman of sound mind, made her wishes known.

This page explains what is meant by being of sound mind.

"But he's over 18 and of sound mind, so the case is closed."

No white person of sound mind would ever claim to be a negro.

They found the two men who had gone off into the desert, everyone remained of sound mind, and no one died.

We are firmly convinced that he is not of sound mind.

However, if the patient is of sound mind, they are generally able to refuse treatment.

I doubt anyone of sound mind could take the council letter seriously.

You declare a man to be of sound mind, and minutes later he jumps to his death.

Anyone over the age of 18 years who is of sound mind can complete a living will.

The person who wishes to commit suicide also must be of sound mind.

Kelly died in Sydney aged 90, still of sound mind.

Monastic servants were expected to be of sound mind and body.

The appeals court concluded that Yang was of sound mind.

His behaviour at and after the trial suggests that, by this time, he was not of sound mind.

What a legacy to the old ideal of sound mind, sound body.

He left a suicide note expressing his intent to kill himself "while of sound mind".

An adult patient of sound mind can get such a prescription only if judged by two doctors to have less than six months to live.

Faustina passed the required tests and was declared of sound mind.

He was in good health, had sustained no wounds, was of sound mind.

Being of sound mind, however, I figured you wouldn't magically take my call.