Albert Einstein

(14 March 1879 – 18 April 1955)

"was a German-born theoretical physicist who developed the theory of general relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics and one of the most prolific intellects in human history. He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect". The latter was pivotal in establishing quantum theory within physics."
Einstein had Asperger's Syndrome and Dyslexia. 

For more information - see Wikipedia page : http://en.wikipedia.org/wiki/Albert_Einstein

Stephen Hawking

"CH, CBE, FRS, FRSA (born 8 January 1942) 
is an English theoretical physicist and cosmologist, whose scientific books and public appearances have made him an academic celebrity. He is an Honorary Fellowof the Royal Society of Arts, a lifetime member of the Pontifical Academy of Sciences, and in 2009 was awarded thePresidential Medal of Freedom, the highest civilian award in the United States...
Hawking has a motor neurone disease that is related to amyotrophic lateral sclerosis, a condition that has progressed over the years and has left him almost completely paralysed."

from wikipedia page : http://en.wikipedia.org/wiki/Stephen_Hawking