Google never did any advertising. They're like dealers; they sell the stuff, but they know better than to use it themselves. - Paul Graham

"If you're too inexperienced to start a startup, what you should do is start one. That's a way more efficient cure for inexperience than a normal job. In fact, getting a normal job may actually make you less able to start a startup, by turning you into a "tame animal" who thinks that he needs an office to work in and a product manager to tell him what software to write."

Being both imaginative and determined is a powerful combination because it's so rare — so many imaginative people are dreamy and ineffective, and so many determined people are merely energetic robots.

When mechanical watches became obsolete around 1970 they represented almost exactly 700 years of refinement by some of the best minds of their time. That is a really long run.