One of the most powerful transformational catalysts is knowledge, new information, or logic that defies old mental models and ways of thinking.

The power in Washington, D.C., is centered on the status quo - outdated systems, models, and programs built for a previous century. With more silicon and less concrete, we can open up those models to return power and independence to every man, woman, and child.

Women today are dealing with both their independence and also the fact that their lives are built around finding and satisfying the romantic models we grew up with.

The pleasures of the imagination are as it were only drawings and models which are played with by poor people who cannot afford the real thing.

I hope that somewhere in Small Town, U.S.A., a 15-year-old kid looks to me as a role model the way I looked at the Indigo Girls and Elton John as role models.

It's important for moms, but also dads, to recognize that they're role models when it comes to their kids' physical health, when it comes to working out, and when it comes to nutrition.

Using predictive models from engineering and public health, designers will plan safer, healthier cities that could allow us to survive natural disasters, pandemics, and even a radiation calamity that drives us underground.

One of the things we need to do is address mental health care as an integral part of primary care. People often aren't able to navigate a separate system, so you see successful models where a primary care physician is able to identify, diagnose, and concurrently help people get mental health treatment who have mental health issues.

I have a lot of trouble understanding all the detail of finance and administration - but if you combine intellectual and professional capacity with a social conscience, you can change things: countries, structures, economic models, colonial states.

But things move in circles: one minute it's the models who are famous, then it's the actresses, then it's the designers.

It's very difficult today for girls to become supermodels. There is a lot more competition, a lot of countries in the East have opened up so there are many more models than there were in the Nineties. Now they have to compete with famous actresses but also with, say, reality stars to be on the magazine covers.

Before I started my modeling career at 20, I used to replay fashion show videos on-line and study how famous models walk and pose on runways.

I don't care to be famous. But at the same time, you look at all the role models these little girls have, and they don't have anyone to look up to. I mean, it's weird, but if I just hid out and didn't let myself be known, who would they look up to instead, you know?

I come from a family of strong women, who have been positive role models for me.

I wouldn't say there's a need for the Spice Girls, but I'd say there's a place for the Spice Girls. There's certainly a place for them, but you don't promote the Spice Girls at the expense of promoting what I think are good role models for girls. You need to create some kind of equality.

Energy and environmental regulation, transportation, and broadband policy all benefit when legislators have a basic grounding in the technical concepts behind business models, products, and innovation.

In Congress, I will fight for an education system that bridges the opportunity gap in order to help close the achievement gap, and prioritize models that sustain and enrich whole people and communities.

I employ case studies of failure into my courses, emphasizing that they teach us much more than studies of success. It is not that success stories cannot serve as models of good design or as exemplars of creative engineering. They can do that, but they cannot teach us how close to failure they are.

Fields make huge progress when they move from stories (e.g Icarus) and authority (e.g 'witch doctor') to evidence/experiment (e.g physics, wind tunnels) and quantitative models (e.g design of modern aircraft).

If we made the 'Batman' games more realistic, you'd have to be Bruce Wayne for half the game, counting his money and dating supermodels.

The older people that one admires seem to be fearless. They go right out into the world. It's astounding. Maybe they can't see or they can't hear, but they walk out into the street and take life as it comes. They're models of courage, in a strange way.

I loved all the princess films, and I grew up with them, and I think it's really cool how they've changed over the years - how the princesses have become more positive role models right up until 'Frozen.'

Me and my wife watch laser discs, and I collect old computers. And one of my regular models is a 1993 computer with Windows 98 on it. I just love old technology, and I don't know what you would call that. I'm just stuck in 1991, '92.

Technological developments are changing the way we live, and there is much talk of digitalisation and the disruptive business models enabled by smart phones, tablets, computers, and the 'Internet of things.'