Harry liked her from the first, and then you'll be Frank's brother, and your sound head and good heart will keep him right.
I have always been noted for a sound head and a steady tongue.
They are quite astonished that, in addition to the execution of the law, good sense and a sound head should be expected from them.
How refreshing it was to meet a practical, sound head in all that confusion!
The old notion, that work was a curse, never entered his sound head.
If he did not always run well it was not for want of a sound head or a sharp eye.