Martin Gardner, one of the world’s quintessential men of reason, passed away at age 95 on Saturday.

… [he] teased brains with math puzzles in Scientific American for a quarter-century and … indulged his own restless curiosity by writing more than 70 books on topics as diverse as magic, philosophy and the nuances of Alice in Wonderland…

…also wrote fiction, poetry, literary and film criticism, as well as puzzle books. He was a leading voice in refuting pseudoscientific theories, from ESP to flying saucers. He was so prolific and wide-ranging in his interests that critics speculated that there just had to be more than one of him.

[In 1983]  …he began a column in Skeptical Inquirer, “Notes of a Fringe Watcher,” which he continued to write until 2002. He had already begun beating this drum, debunking psuedoscience, in his book “Fads and Fallacies in the Name of Science.” He helped found the Committee for the Scientific Investigation of Claims of the Paranormal.

In The New York Review of Books in 1982, Stephen Jay Gould, the evolutionary biologist, called Mr. Gardner “the single brightest beacon defending rationality and good science against the mysticism and anti-intellectualism that surround us.”