Isaac Asimov (1920-1992) was a professor of biochemistry who achieved fame as one of the seminal authors of science-fiction's Golden Age during the mid-20th century. Asimov served as president of the American Humanist Association, vice president of MENSA, and is the namesake of numerous awards and prizes. He would have been 95-years-old today.

"There are no happy endings in history, only crisis points that pass."

Source: The Gods Themselves (1972) (via Wikiquote)

Image credit: "Isaac Asimov on Throne" by Rowena Morrill - en:Image:AsimovOnThrone.png, uploaded to en:Wikipedia by en:user:Xiong 14:06, 2 April 2005. Via Wikimedia Commons.