An idea that is not dangerous is not worthy of being…

The idea that is not dangerous is not worthy of being called an idea at all.

— Elbert Hubbard

An idea that is not dangerous is unworthy to be called an idea at all.

— Elbert Hubbard

An idea that is not dangerous is unworthy of being called an idea at all.

— Oscar Wilde

“An idea that is not dangerous is unworthy of being called an idea at all.’ Oscar Wilde.”

— Brandt Legg

If NATURE has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called…

— Thomas Jefferson

“An idea so dangerous it can’t be discussed. I thought we buried all that nonsense back in the Dark Ages.”

— Alastair Reynolds

“The idea for the Guild first came up at a party. Your father and I met there and, well, I suppose that's a story…

— Sonny and Ais

I can play 'Guitar Hero,' most of the songs on Medium and some of the songs on Hard. No Expert.

— Ryan Hansen

Look, science is hard, it has a reputation of being hard, and the facts are, it is hard, and that's the result of 400…

— Seth Shostak

“Talent alone does not make someone an expert.”

— John W. Santrock

An expert is someone who knows some of the worst mistakes, which can be made, in a very narrow field.

— Niels Bohr

An expert is a man who has made all the mistakes which can be made, in a narrow field.

— Niels Bohr

Whenever there's a speciality dance, such as the Charleston or the Argentine Tango, 'Strictly' enlists expert choreographers to work with the professional dancers.

— Angela Rippon

I've always been a fan of old-time hymns and Scots-Irish dirges, though I wouldn't necessarily consider myself an expert on the type of music…

— Ryan Bingham

As actors, you become an expert at starting over.

— Lupita Nyong'o