I've made my career, made money in real estate and real estate development.

How can you not have people in leadership roles in our country not supporting the rule of law? That's what separates us from the rest of the countries around the world.

When you look at all of the problems that are streaming and flowing over that border, the first thing we have to do is secure it. Job number one.

There is no way that anyone who - besides the folks that want to plain ignore facts - there's no way that anyone can say that by building that wall we are not going to accomplish a more secure border. It's just proven. We can do this.

Climates always change. The question is, how are we going to adapt to climate change? Now, it may be true that we are accelerating it inadvertently by messing with our atmosphere, but regardless of that, the climate will change.

We are all living together on a single planet, which is threatened by our own actions. And if you don't have some kind of global cooperation, nationalism is just not on the right level to tackle the problems, whether it's climate change or whether it's technological disruption.

I started photographing amazing African wildlife for my own pleasure. It was like a much-needed antidote to my life in the city, which I was fast becoming allergic to.

We need the humbleness and clarity to see that our food, while benefitting from technological advances, has benefitted even more from free ecological resources: Cheap energy, lots of water everywhere, and a stable climate.