One day, my supervisor, Carol Shoemaker, and I were discussing metaphysics.

H. G. Wells, Sybil and her father used to take long walks discussing metaphysics.

"Bet Ya'ar ha-Lebanon," in four parts, discusses Cabala, metaphysics, and natural history.

"We ought to do something other than discuss metaphysics," Ganelon commented.

We are not discussing metaphysics now.

Jean-Claude didn't ask stupid questions or try to discuss metaphysics.

"Oh, you want to discuss metaphysics, do you?"

However, I don't propose to discuss politics, sociology, or metaphysics with you.

Hogg and Shelley often discussed literature and metaphysics, had a shared disdain for religion and Oxford society, and were united in their belief in free love and free thinking.

We can discuss magical metaphysics tomorrow.