What looks like multitasking is really switching back and forth between multiple tasks, which reduces productivity and increases mistakes by up to 50 percent.

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.

A widely held, but rarely articulated, belief in our society is that the ideal self is bold, alpha, gregarious. Introversion is viewed somewhere between disappointment and pathology.

I actually find extroversion to be a really appealing personality style.

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

The bias against introversion leads to a colossal waste of talent, energy, and happiness.

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