Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations. - Steve Jobs

In most cases, strengths and weaknesses are two sides of the same coin. A strength in one situation is a weakness in another, yet often the person can’t switch gears. It’s a very subtle thing to talk about strengths and weaknesses because almost always they’re the same thing.

I decided to take a calligraphy class to learn [the art of decorative or hand lettering]. I learned about serif and sans-serif typefaces, about varying the space between different letter combinations, about what makes great typography great. It was beautiful. Historical. Artistically subtle in a way that science can't capture. And I found it fascinating. None of this had any hope of any practical application in my life. But 10 years later, when we were designing the first Macintosh computer, it all came back to me. And we designed it all into the Mac. It was the first computer with beautiful typography. If I had never dropped in on that single course in college, the Mac would never have multiple typefaces or proportionally spaced fonts. And since Windows just copied the Mac, it's likely that no personal computer would have them.

John Sculley ruined Apple and he ruined it by bringing a set of values to the top of Apple which were corrupt and corrupted some of the top people who were there, drove out some of the ones who were not corruptible, and brought in more corrupt ones and paid themselves collectively tens of millions of dollars and cared more about their own glory and wealth than they did about what built Apple in the first place — which was making great computers for people to use.