Albert Einstein

Einstein is commonly considered the most intelligent human to live, developing the theory of relativity, becoming one of two pillars of modern physics and defining the mass-energy equivalence, contributing to the development of the quantum theory and much more.  At age 42, he won the Nobel Prize for Physics. 

Yet again, Einstein was no stranger to failure.  Although factually controversial, it is widely believed that Einstein did not speak until he was 4 years old or read until he was 7.  Teachers described him as “mentally slow, unsociable, and adrift forever in foolish dreams.”