“I found this quote for writers on Twitter:There is a fine line between confidence and delusional thought; cross it.Don't know who wrote it but thought it was interesting.”

“It does, Tennyson, because there’s a fine line between confidence and arrogance. There’s a fine line between being assertive and being a bully. And you’re on the wrong side of both lines.”

“There is a problem with writers. If what a writer wrote was published and sold many, many copies, the writer thought he was great. If what a writer wrote was published and sold a medium number of copies, the writer thought he was great. If what a writer wrote was published and sold very few copies, the writer thought he was great. If what the writer wrote never was published and he didn't have enough the money to publish it himself, then he thought he was truly great. The truth, however, was there was very little greatness. It was almost nonexistent, invisible. But you could be sure that the worst writers had the most confidence, the least self-doubt. Anyway, writers were to be avoided, and I tried to avoid them, but it was almost impossible. They hoped for some sort of brotherhood, some kind of togetherness. None of it had anything to do with writing, none of it helped at the typewriter.”

“there is a fine line between sarcasm and hostility, you seemed to have crossed it. What's up?”

“It is a fine line, in all of us, between civilization and savagery. To any who think they would never cross it, I can only say, if you have never known what it is to be utterly betrayed and abandoned, you cannot know how close it is.”

“The line between confidence and arrogance is very fine, Josh,” Flamel said quietly. “And the line between arrogance and stupidity even finer. Sophie,” he added, without looking at her.”