The only thing that prepares you to run a company is running a company.

Early in my career as an engineer, I’d learned that all decisions were objective until the first line of code was written. After that, all decisions were emotional.

I don’t believe in statistics. I believe in calculus.

There are no silver bullets.

There is no silver bullet. There are always options and the options have consequences.

It turns out that is exactly what product strategy is all about—figuring out the right product is the innovator’s job, not the customer’s job.

Don't punk out and don't quit.