The idea of democracy played a critical role in Dewey's philosophy.

The idea that the fracas over the record store's future had played a role in this surprised him.

Other ideas which might appeal are conservation work or playing a more active role in politics by joining your local party association.

I believe that such original ideas played a part in how weapons were once created out of people.

Even imagination and ideas do not play a role in this relation.

An idea had been playing around in her head.

"Discarded ideas play a role in creating a work of art," he added.

His ideas played a significant role in the development of Ba'athism and its political movement.

The idea of destiny versus freedom, choice, and free will plays a large role.

The idea of his becoming a lawyer didn't play well at home.