Every American was to become a performing self.

The next time you see a person with a composed face and a soft voice, remember that inside her mind she might be solving an equation, composing a sonnet, designing a hat. She might, that is, be deploying the power of quiet.

In a way, education by its nature favours the extrovert because you are taking kids and putting them into a big classroom, which is automatically going to be a high-stimulation environment. Probably the best way of teaching in general is one on one, but that's not something everyone can afford.

When you go to a football game and someone offers you a beer [...], they're really saying hi, have a glass of extroversion.

Your tendency to be inward-directed or outward-directed is huge; it governs every part of the way you live and work and love.

When you're more focused in getting your message across than you are worrying about how people are viewing you, that's huge.

We put too much of a premium on presenting and not enough on substance and critical thinking.