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.

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.

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

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 · 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.

Whoever you're playing against, you want to do as well as you can.

Roman civilization had achieved, within the bounds of its technology, relatively as great a mastery of time and space as we have achieved today.

When I was growing up, there weren't any Little Leagues in the city. Parents worked all the time. They didn't have time to take their kids out to play baseball and football.

When shifts and transitions in life shake you to the core, see that as a sign of greatness that's about to occur.

When something happens, I always check myself and know it's going to go away. So be prepared for it. This is a tough business for actors who are sensitive. If you try to hold on to things, you'll go crazy.

Millions of dollars' worth of advertising shows such little respect for the reader's intelligence that it amounts almost to outright insult.

To go back to visit the early days with Bob Fosse and Gwen Verdon, when she was the dance captain of 'How to Succeed,' and finding them again 25 years later and working with them on 'Charity.' That was really great fun.

It's hard for me not to have a great deal of compassion for the last Romanov family because, really, I don't know if a politically savvy ruler would have been able to make the situation turn out much differently.

The public is even more pessimistic about the economy than even the most bearish economists are.

Everybody makes mistakes.

I've dealt with a lot of couples over the years, and most cite the battle for closet and bathroom space as one of the most frequent causes of marital discord.

Reputation is a timely subject, now that nobody has one.

I always saw myself as really ugly. My father even told me I was ugly because I would shave my head and look like a boy.

If you don't like the way the world is, you change it. You have an obligation to change it You just do it one step at a time.

Jews have been in Egypt since Biblical times, and Alexandria had once been, at least partially, a Jewish city.

You see countries like India really investing in their space program because they see it as inspirational and good for their economy.

Some things that are invisible and untouchable can nevertheless be seen and felt.

I always envied them, the owners of the cars with the white plates who can be seen around Jerusalem. I always wanted to be one of them. We call them U.N., even though U.N. are generally foreign correspondents with leased cars and yellow plates.

I do not love immigration. I think immigration has been harmful to the United States. I think it's brought more persons more dependent on the government into this country.

Baseball is a universe as large as life itself, and therefore all things in life, whether good or bad, whether tragic or comic, fall within its domain.

It's easy to be taken advantage of if you're not honest.

Reckless action is worse than wise restraint.

I definitely don't need therapy in life because I have gone through every little corner of my life.

I don't know how to be a rapper. I just know how to be me.