Life is difficult no matter what, but hard work and perseverance make it a lot easier.

Anything greater than 350 of parts of carbon dioxide per million is more than the planet can safely deal with. It is what's overwhelming our climate system. Because we've been going up about three parts per million per year. And eventually, we will always be above 410, and then above 420, and above 430. We just keep pouring more carbon into the atmosphere.

The press has become so dishonest that if we don't talk about, we are doing a tremendous disservice to the American people. Tremendous disservice. We have to talk to find out what's going on, because the press honestly is out of control. The level of dishonesty is out of control.

I've never seen a successful person who wasn't flexible, who didn't have a certain degree of flexibility. You have to show a degree of flexibility.

Now I know a lot about NATO - NATO is obsolete, and the reason it's obsolete is because of the fact they don't focus on terrorism.

The budget was unlimited, but I exceeded it.

Cyber attacks from foreign governments, especially China, Russia, North Korea along with non-state terrorist actors and organized criminal groups constitute one of our most critical national security concerns. They're leaning everything about us and we don't have - wanna have any servers in the basements, by the way folks.