Einstein was said to be a very slow talker as a child. He is said to not have begun speaking until around the age of five, which worried his parents into believing that he might be "slow." Today the term "Einstein Syndrome" is used to categorize exceptionally bright children who display a delay in speech.
"The true value of a human being is determined by the measure and the sense in which they have obtained liberation from the self. We shall require a substantially new manner of thinking if humanity is to survive."- (Albert Einstein, 1954)