sacred cow

Science is great but it mustn't be a sacred cow.

Who better to take on the sacred cow of popular music?

Yes, I get on players and there are no sacred cows.

"But these sacred cows must take the responsibility for what they have done to this country."

This book takes on some pretty sacred cows, but it's about time they became fair game.

The next issue took on an even more sacred cow, the Palestinian movement.

"In the information world, there can be no sacred cows."

Haven't heard anything from any party that challenges this sacred cow.

What are the customs and sacred cows of college today?

They're saying we're going to explode all these sacred cows.