But the greatest mistake in life is to risk nothing.

But the greatest mistake I ever made was with you.

Your greatest mistake was not to recognize the deep concern the teachers have for the city's children.

"I think the greatest mistake ever made is to mix painting and politics," he said.

He has said many times it was his greatest mistake.

I asked him: "What is the greatest mistake young people make today in looking for work?"

My sister says that was the greatest mistake I ever made.

What do you consider the greatest mistake of this administration?

What do you think was our greatest mistake in the Iraq invasion?

After so long, the greatest mistake of his life was about to be put right.