Focus is a matter of deciding what things you're not going to do.

The cost of adding a feature isn't just the time it takes to code it. The cost also includes the addition of an obstacle to future expansion. ... The trick is to pick the features that don't fight each other.

At its best, entertainment is going to be a subjective thing that can't win for everyone, while at worst, a particular game just becomes a random symbol for petty tribal behavior.

I wanted to remain a technical adviser for Id, but it just didn't work out. Probably for the best, as the divided focus was challenging.

Everybody's saturated with the marketing hype of next-generation consoles. They are wonderful, but the truth is that they are as powerful as a high end PC is right now.

Focus is a matter of deciding what things you're not going to do.

If you're willing to restrict the flexibility of your approach, you can almost always do something better