I'm convinced that about half of what separates the successful entrepreneurs from the non-successful ones is pure perseverance... Unless you have a lot of passion about this, you're not going to survive. You're going to give it up. So you've got to have an idea, or a problem or a wrong that you want to right that you're passionate about otherwise you're not going to have the perseverance to stick it through.

If you live each day as it was your last, someday you'll most certainly be right

The reason we wouldn't make a seven-inch tablet isn't because we don't want to hit a price point, it's because we don't think you can make a great tablet with a seven-inch screen.

Now, we are selling over 5 million songs a day now. Isn't that unbelievable? That's 58 songs every second of every minute of every hour of every day.

Again, you can't connect the dots looking forward; you can only connect them looking backwards. So you have to trust that the dots will somehow connect in your future. You have to trust in something - your gut, destiny, life, karma, whatever. This approach has never let me down, and it has made all the difference in my life.

Combine science and humanities.

The axis today is not liberal and conservative, the axis is constructive-destructive.