It's impossible for one person to think of everything.

Donald Trump, Vladimir Putin and Marine Le Pen seem to have no respect for the institutions that were created after World War II, and they see a potential alliance of populists around the world who would fight Islam and restore a certain semblance of traditional values.

I wouldn't say philosophy and theology are dead. Brain science doesn't invent new philosophies but it helps remind us which of our existing philosophies are more true.

There are plenty of team players in government who do whatever the leader says. There are too few difficult members, who have complicated minds, unusual perspectives, the toughness to withstand the party-line barrages and a practical interest in producing results.

I think Romney's foreign policy is sensible.

The idea that when you correct a fact, you erase that fact from people's memories is the reverse of the truth. When you correct a fact, what you do is you further lodge that fact into people's minds, and they remember the error.

I do think Hillary Clinton should have pivoted and say, I am change, I am change, because people do want some change.