Pretend to be completely in control and people will assume that you are.

On the day he unveiled the Macintosh, a reporter from Popular Science asked Jobs what type of market research he had done. Jobs responded by scoffing, "Did Alexander Graham Bell do any market research before he invented the telephone?

for Steve, less is always more, simpler is always better. Therefore, if you can build a glass box with fewer elements, it’s better, it’s simpler, and it’s at the forefront of technology. That’s where Steve likes to be, in both his products and his stores.

Leonardo da Vinci did not take received wisdom - whether from ancient classical thinkers or medieval scholars or from the Bible - without questioning it. And this was the beginning of the scientific method. This is another lesson for our time: that when we have evidence that contradicts a certain belief, we should be willing to change it. I think this made Leonardo, in some ways, a person who better understood the beauty of God's creation than a person who just takes all received wisdom from the Bible on faith.

You and I love understanding American Revolution, but let's also understand the digital revolution, because that makes us more comfortable with our technology.

I have my own theory about why decline happens at companies like IBM or Microsoft. The company does a great job, innovates and becomes a monopoly or close to it in some field, and then the quality of the product becomes less important. The company starts valuing the great salesmen, because they’re the ones who can move the needle on revenues, not the product engineers and designers. So the salespeople end up running the company.

He had the uncanny capacity to know exactly what your weak point is, know what will make you feel small, to make you cringe," Joanna Hoffman said. "It's a common trait in people who are charismatic and know how to manipulate people. Knowing that he can crush you makes you feel weakened and eager for his approval, so then he can elevate you and put you on a pedestal and own you.