"Can I eat these?" he said. "No," said Vivian. "I'm hungry." "I'll give you half," Sam said, plainly thinking he was being generous. - Diana Wynne Jones

If you stood up and told the truth in the wrong way, it was not true any longer, though it might be as powerful as ever.

Amazing. You're here, but you can't do a simple thing like raising light, or do I mean lazing right? Whichever. You can't. Why not? No one ever showed me how, I said. He swayed about, looking solemn. I quote, he said. I'm very well read in the literature of several worlds, you know, and I quote. What do they teach them in these schools?

Adara was impressed. "How do you know that?" "I learnt it," said Hathil. "It pays to learn things."