It must have been tough to be Albert Einstein, Ambassador to the Universe. Sure, you’re one of the few people who understands the greater workings of existence, but how to pull yourself together well enough to present these theories to the public? If not for Einstein’s second wife, Elsa, the biggest brain of them all would have rested atop an always-disheveled frame—certainly an unfit public image for a man who served as a frequent go-between for humanity and the ether of Big Science. The physicist himself said it best; in rejecting an offer to become president of Israel, Einstein wrote: “All my life I have dealt with objective matters, hence I lack both the natural aptitude and the experience to deal properly with people and to exercise official functions.” Authors Karen C. Fox and Aries Keck discuss Einstein A to Z at 5 p.m. at Politics and Prose, 5015 Connecticut Ave. NW. Free. (202) 364-1919. (Mike Kanin)