“Serrated, adj.And you said, "I'm not sure we can.”

“traverse, v.You started to cry, and I quickly said, "No -- I mean this part is over. We have to get to the next part."And you said, "I'm not sure we can."Without even having to think about it, I replied, "Of course we can.""How can you be so sure?" you asked.And I said, "I'm sure. Isn't that enough?”

“I think we can do it.""But you don't know for sure," he said."No.""Geez, Anita.""Don't get rattled on me. We can do this.""But you aren't sure.""I'm not sure we'll survive the plane ride home, but I'm still getting on the plane.""Was that supposed to be comforting?" he asked."Yeah.""It wasn't," he said."Sorry, but this is as good as it gets. You want certainty, be an accountant.""I'm not good at math.""Me either.”

“That does it," said Jace. "I'm going to get you a dictionary for Christmas this year.""Why?" Isabelle said."So you can look up 'fun.' I'm not sure you know what it means.”

“Until we can navigate in time, I'm not sure that we can prove that what happened is real.”

“I'm not a liar, sir,' she said."'No, I'm sure you sincerely become whatever it is you're pretending to be.”