Today, the science world is mourning the death of one of the most significant physicists of modern times.
There are many biographies and obituaries being published today, for example, http://www.cam.ac.uk/stephenhawking from the University of Cambridge, where Hawking was Lucasian Professor of Mathematics, so please go to them if you wish to find out more information about his life and work.
I would simply like to share this quotation, to hopefully inspire you all.