I like commas.

“Tut, tut. We can't let mere sentiment intrude. This is Science.”

“What is the future going to be like, then?' 'Hey, it's gonna be a gas,' Scape a…”

“Over the vistas broke a cold gray light, such as seen in those false dawns that…”

“I believe it " announced Tafe complacently. "That my dear " said Ambrose "is b…”