Dad, you've done a lot of great things, but you're a very old man, and old people are useless.

Eighty percent of success is showing up.

A lot of companies have chosen to downsize, and maybe that was the right thing for them. We chose a different path. Our belief was that if we kept putting great products in front of customers, they would continue to open their wallets.

There is one weakness in people for which there is no remedy. It is the universal weakness of lack of ambition.

Practice does not make perfect. Perfect practice makes perfect.

Hell, there are no rules here - we're trying to accomplish something.

I am easily satisfied with the very best.

Lisa, if you don't like your job you don't strike. You just go in every day and do it really half-assed. That's the American way.

You can observe a lot just by watching.

Few things are impossible to diligence and skill. Great works are performed not by strength, but perseverance.

Obstacles are those frightful things you see when you take your eyes off your goals.

Without work, all life goes rotten, but when work is soulless, life stifles and dies.

If you think your teacher is tough, wait until you get a boss. He doesn't have tenure.

Deadlines just aren't real to me until I'm staring one in the face.

At least with me, the match starts much, much earlier than the actual match.

You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.

Don't mistake activity with achievement.

A man paints with his brains and not with his hands.

Just because something doesn't do what you planned it to do doesn't mean it's useless.

Choose a job you love and you will never have to work a day of your life.

Whether it's Google or Apple or free software, we've got some fantastic competitors and it keeps us on our toes.