He wrote mathematical equations till he died!

The last line of equation ever written...

It was the night of 17th April,1955. Albert Einstein was working on the Grand Unified Theory. It is defined by by merriam-webster.com as "any of several theories that seek to unite in a single mathematical framework the electromagnetic and weak forces with the strong force or with the strong force and gravity." Einstein was working in a hospital bed despite the pain from his abdominal aortic aneurysm. He worked as long as he could, and when the pain got too great he went to sleep.

Shortly after 1 am on Monday, 18th April, 1955, his nurse heard him blurt out some words in German that she could not understand. The aneurysm, like a big blister, had burst, and Einstein died at age 76.

At his bedside lay the draft of his undelivered speech for Israel Independence Day. “I speak to you today not as an American citizen and not as a Jew, but as a human being,” it began.

Also by his bed were twelve pages of tightly written equations, littered with cross-outs and corrections. To the very end, he struggled to find his elusive unified field theory. And the final thing he wrote, before he went to sleep for the last time, was one more line of symbols and numbers that he hoped might get him, and the rest of us, just a little step closer to the spirit manifest in the laws of the universe.

...the final thing he wrote, before he went to sleep for the last time, was one more line of symbols and numbers...

Einstein was working till the very last moment that he was conscious. There is nothing more inspirational &/or motivational than this story of Einstein. To love your work so much, that you can do it all your life, on the deathbed even! Death may come anytime soon but you're not afraid of it as you have some 'important stuff' to do and you don't have time to worry about dying!

Of course I don't recommend overworking, but just pointing out how much we have to be passionate and persistent in order to succeed!

Source: Einstein: His Life and Universe by Walter Isaacson