“doubt is a skill. credulity ,by contrast, appears to be something very like an instinct”

“Just remember, it's an easy place to be at home in, Ireland. I think the people are very skilled at relating. I notice, watching the different nationalities on the mountain, the fluidity of interaction the Irish people have with the visitors, and with each other. It's a skill that's less developed in other nationalities, and it's so instinctive it doesn't even look like a skill.”

“the likeness was stricking. Not exact, of course - no man ever looks exactly like his father - but there was something there, no doubt about it, even with the younger man's beard and straggling hair. Something in the cast of the eyes and the bone structure, perhaps, or in the play of the expression: a kind of ponderous agility, a genetic shadow that was beyond the skills of any actor.”

“Although a skillful flatterer is a most delightful companion if you have him all to yourself, his taste becomes very doubtful when he takes to complimenting other people.”

“I will say that the socially oblivious extroverts do not represent the whole. As with introverts, social skills are independent of extroversion: some are skilled, some are not. The skilled ones know how to listen. But in contrast to socially unskilled introverts, who keep to themselves, socially unskilled extroverts insist on socializing.”

“The object of the new school is to teach reasonable doubt. Not the unreasonable doubt of the wild-eyed heckler, but the evidence-based doubt of the questioning scientist and the reason-based doubt of the skilled debater.”