lose one's mind

He paraphrased the United Negro College Fund’s tagline, “A mind is a terrible thing to waste,” as “What a waste it is to lose one’s mind.”

Former Vice President Dan Quayle’s mangling of a United Negro College Fund advertising slogan, “What a waste it is to lose one’s mind,” has, perhaps mercifully, been dropped.

This morsel from another man who might consider staying out of the sun on golf courses aptly describes our current stubborn and misguided leader: “What a waste it is to lose one’s mind. Or not to have a mind is being very wasteful. How true that is.”

A mind is a terrible thing to waste," he lost himself in a self-indicting verbal fog: "What a waste it is to lose one's mind or not to have a mind.

She leaned her head down on her father's shoulder and thought how sad it must be to lose one's mind.