Bill Gates: Smart people like Steve ought to try to build things from scratch. That’s a worthy thing. But every time it should be a test. Right now there’s a test in handwriting PCs, in object-oriented operating systems, in multimedia computers. Those are the big questions for personal computing in the 1990s, and I’m the one who has to prove the validity of the evolutionary approach.

Steve Jobs: It’s true, your evolutionary approach with Windows is bringing to PCs great new technologies that Apple and others pioneered. But in the meantime — and it’s been seven years since the Macintosh was introduced — I still think that tens of millions of PC owners needlessly use a computer that is far less good than it should be.

FORTUNE Magazine, August 26 1991