Aesthetic integrity · An immersive app, such as a game, can deliver a captivating appearance that promises fun and excitement, while encouraging discovery.

Clarity · Throughout the system, text is legible at every size, icons are precise and lucid, adornments are subtle and appropriate, and a sharpened focus on functionality motivates the design.

Clarity · Negative space, color, fonts, graphics, and interface elements subtly highlight important content and convey interactivity.

Deference · Fluid motion and a crisp, beautiful interface help people understand and interact with content while never competing with it. Content typically fills the entire screen, while translucency and blurring often hint at more.

Deference · Minimal use of bezels, gradients, and drop shadows keep the interface light and airy, while ensuring that content is paramount.

Depth · Distinct visual layers and realistic motion convey hierarchy, impart vitality, and facilitate understanding. Touch and discoverability heighten delight and enable access to functionality and additional content without losing context. Transitions provide a sense of depth as you navigate through content.

Aesthetic integrity · It represents how well an app’s appearance and behavior integrate with its function. For example, an app that helps people perform a serious task can keep them focused by using subtle, unobtrusive graphics, standard controls, and predictable behaviors.

Consistency · A consistent app implements familiar standards and paradigms by using system-provided interface elements, well-known icons, standard text styles, and uniform terminology. The app incorporates features and behaviors in ways people expect.

Direct Manipulation · The direct manipulation of onscreen content engages people and facilitates understanding. Users experience direct manipulation when they rotate the device or use gestures to affect onscreen content. Through direct manipulation, they can see the immediate, visible results of their actions.

Feedback · It acknowledges actions and shows results to keep people informed. The built-in iOS apps provide perceptible feedback in response to every user action.

Feedback · Interactive elements are highlighted briefly when tapped, progress indicators communicate the status of long-running operations, and animation and sound help clarify the results of actions.

Metaphors · People learn more quickly when an app’s virtual objects and actions are metaphors for familiar experiences—whether rooted in the real or digital world.

Metaphors · They work well in iOS because people physically interact with the screen. They move views out of the way to expose content beneath. They drag and swipe content. They toggle switches, move sliders, and scroll through picker values. They even flick through pages of books and magazines.

User Control · Throughout iOS, people—not apps—are in control. An app can suggest a course of action or warn about dangerous consequences, but it’s usually a mistake for the app to take over the decision-making. The best apps find the correct balance between enabling users and avoiding unwanted outcomes.

User Control · An app can make people feel like they’re in control by keeping interactive elements familiar and predictable, confirming destructive actions, and making it easy to cancel operations, even when they’re already underway.

If Romeo can do 'Dancing with the Stars,' anything is possible.

When you learn to keep fighting in the face of potential failure, it gives you a larger skill set to do what you want to do in life. It gives you vision. But you can't acquire it if you're afraid of keeping score.

I used to think that I wanted to be a hat maker, but I don't think that would have worked out.

I think my mother was like a small company which, because things are not ship-shape, keeps two sets of books, one for the auditors and then there's the other one.

Do you love this story? If you love it, then you've got to write it.

I was reading a lot of European history, and I thought Attila the Hun had gotten a bad rap.

I never sympathise with the accused unless there's a chance the accused is not guilty, but I certainly don't ever sympathise with the criminal.

Why I came here, I know not; where I shall go it is useless to inquire - in the midst of myriads of the living and the dead worlds, stars, systems, infinity, why should I be anxious about an atom?

By the time I could have played football, I was already into acting and that's what I wanted to do.

A certain inequality in regard to property still exists in a socialist society. But in a socialist society there is no unemployment, no exploitation, no oppression of nationalities.

If historians don't tell stories at the scales of creation myths, someone else will.

Pretending is not just play. Pretending is imagined possibility. Pretending, or acting, is a very valuable life skill and we do it all the time.

In Washington, the accepted method for passing along information about how the government fails to meet real-world needs is to leak it.

I always wanted to act.

The drama of life begins with a wail and ends with a sigh.

To my mind, it seems clear that those who have no memory have the much greater chance to lead happy lives. But it is something you cannot possibly escape: your psychological make-up is such that you are inclined to look back over your shoulder.

When you return to the same area a few times, you get that frequent rapport with the public and the fans of the music along with having a certain warmth when you walk onstage.

Unless you have a sense of values that's shared by people and turns them loose to do certain things on their own within those sets of values, the organization, whether a nation or corporation or citizen group, just doesn't work very well.

The object of a new year is not that we should have a new year. It is that we should have a new soul.

Without computers, in the 17th century, we could classify the entire animal kingdom... there was this idea of the speciation, right? And now, all a search engine is is essentially the mathematical speciation of ideas - and these things really derive from the way that language is used and the way words relate.

I know I'm funny, because I'm eccentric, I'm odd. I'm not what you expect.

My argument is simple, which is, that for several thousand years in Western civilization, marriage has been the union of one man and one woman. Research is overwhelming that children need mothers and fathers.

Multiculturalism may well be our saviour, wresting us out from the straitjacket of our history, thrusting the old continent into an environment where other ethnicities, less cynical and more positive, will play a big role in its future.

Never underestimate your ability to make someone else's life better - even if you never know it.