Einstein

I have finished reading this biography by Walter Isaacson. It is the fascinating history of a rebellious non-conforming mind which, dissatisfied with generally accepted truth, sought here-to-for unimagined basic truth. His finding that matter is simply condensed energy, of the equivalence of gravity and acceleration, and his theories of relativity revolutionized our understanding of the universe. His lifetime ambition to unify science with a "theory of everything" was never achieved but he never gave up the quest - fascinating insight into the mind of a genius.