Dr. Pinker is a professor of psychology at Harvard and the author of “When Everyone Knows That Everyone Knows …: Common Knowledge and the Mysteries of Money, Power, and Everyday Life.” The ...

For what may have felt like the umpteenth time on Thursday, self-described “really smart” Donald Trump made the implausible claim that he’s going to force pharmaceutical companies to slash prices by ...

“I almost worship him as if he were a god. I have never felt such an extravagant admiration for anybody.” So the 22-year-old Bertrand Russell wrote to his fiancée Alys Pearsall Smith in November 1894.

You may either excel in creativity or have strong intellectual abilities. However, some individuals seem to have hit the personality jackpot, successfully combining both intuition and logic. According ...