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.

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 · 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.

There is no such thing as an empty space or an empty time. There is always something to see something to hear. In fact try as we may to make a silence we cannot.

After Emancipation, black women married earlier and more often because they were legally free to do so for the first time, and that was true until after World War II. But middle-class white women married less and later.

Those who do not know how to weep with their whole heart do not know how to laugh either.

The purpose of education is to create a purpose for life. Go for it with the utmost sincerity.

The best way to prepare for a night out with a Shakespearean tragedy is to do a bit of reading up in the afternoon, eat a light supper - perhaps Welsh rarebit - and then arrive early to do some stretching exercises in the foyer before curtain-up.

Our Creator would never have made such lovely days, and have given us the deep hearts to enjoy them, above and beyond all thought, unless we were meant to be immortal.

I just play him as myself, I don't ease myself into any role really. I stick a beard on and play me.

The hour of reformation is always delayed every delay gives vice another opportunity of fortifying itself by habit.

I have this dream that the first responders to 911 calls will not be law enforcement personnel but robots. Robots can put eyes and ears on the scene much faster than you can with policemen or women.

I can't pretend to be enjoying this. I can't pretend I'm enjoying going out there and playing this style.

The foolish and the dead alone never change their opinion.

Do not trust people. They are capable of greatness.

I'm incredibly fortunate to have met the intelligent, generous, risk-taking, stimulating man to whom I am married. He's really amazing.

The first big stars, Bessie Smith, Ma Rainey, you know, these were gigantic stars. I even wonder sometimes whether all music actually comes from women, whether the first glimmering of music is a mother soothing a baby.

We are not only talking about waves of refugees coming to Greece, to Italy, and elsewhere. Destabilizing the Balkans means Lebanonization, and that means destabilizing all of Europe.

Assassin?… That sounds so exotic… I was just a murderer.

I'm very wary of doing political stuff for a lot of reasons. One of the big ones is that the shelf-life for them is not very long, and the joke becomes old news very quickly.

A vacation is like love: anticipated with pleasure, experienced with discomfort, and remembered with nostalgia.

In a startup, both the problem and solution are unknown.

Tyranny and anarchy are alike incompatible with freedom, security, and the enjoyment of opportunity.

A good song receives love forever.

A good stunt has to have both style and substance. It's a combination of impact and notoriety, the element of danger, technical execution, and the skill of the stunt performer.

My character is somebody who is smaller in stature and yet who's strong, so to see the fighting situations between people who are not generally thought of being strong is in itself unusual and therefore interesting, I think.

We must continue to foster relevant and constructive dialogue among Israeli and Palestinian communities.