To rouse the sorcerers' ire further might be dangerous folly- but instructive.

You will come to think that all this spiritualism, as it is called, is nothing but a dangerous folly.

But in doing so he has conceived many a dangerous folly.

"Some of what Zhirinovsky says, they like; some, they consider dangerous folly," he said.

"Common Sense" becomes a speaking character, continually charging Tertuliano with dangerous folly.

Which makes me wary of committing myself too confidently, and has taught me that to vaunt one's knowledge is a dangerous folly.

Clean and renewable energy sources should be the basis of our energy supply, not the dangerous short-term folly of nuclear power.

He said resisting the "dangerous folly" of the Bush missile shield plan was "more important than keeping this prime minister in 10 Downing Street."

During the 2000 presidential debates, George W. Bush mocked the idea of nation-building as a dangerous Democratic folly.

Huma opened his mouth to speak but realized that would be dangerous folly.