Piracy is almost always a service problem.

Computing lets people express their creativity and unlock solutions, and code is computing's universal language. All young people, including girls, deserve to be fluent in the language of the future.

About half the people at Valve have run their own companies, so they always have the option not just to take a job at another game company, but to go start their own company. The question you always have to answer is, 'How are we making these people more valuable than they would be elsewhere?'

The programmers of tomorrow are the wizards of the future.

Don't ever, ever try to lie to the internet.

Everybody understands that you're supposed to say 'our employees are our most valuable asset' to the point where, even if it's really true, they're not going to really trust you until you've earned that - same with customers.

I think Windows 8 is a catastrophe for everyone in the PC space. I think we'll lose some of the top-tier PC/OEMs, who will exit the market. I think margins will be destroyed for a bunch of people.