Chapter 69: Of the strangest and most comical thing that ever befell Don Quixote in the whole course of this great history.

• What do you say after you pick up the phone? Most people say "hello," and there's a reason for that: phone companies taught people to say it in the 1800s. 
• The word caught on, in part, because phone books instructed people to begin conversations by saying "hello" as a way to confirm ...

A comprehensive study published in 1999 found that placebo effects were caused by both expectancy and conditioning.

But some researchers argue that there is something mysterious about how placebos work. While it is easy to see what happens inside the brain to the amygdala, or the other bit...

Effective leaders are able to manage both the day-to-day issues that press in on them and the bigger picture. A knowledge of history shows patterns amidst all the noise of current events and reminds of unusual possibilities.

Bismarck famously said that a statesman “must wait until he...