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.
For years, the story went around that Albert Einstein failed math. This is simply untrue. What he did fail was his university entrance exam. The fact is, young Albert took the exam at age 16 as somewhat of a prodigy and scored outstanding marks in Math and Science, but failed the other general education sections. He went back for another year of schooling and was admitted to university at age 17.
Albert Einstein in 1893 (age 14). From Euclid, Einstein began to understand deductive reasoning, and by the age of twelve, he had learned Euclidean geometry. Soon after he began to investigate infinitesimal calculus. At age 16, he performed the first of his famous thought experiments in which he visualized traveling alongside a beam of light.
Albert Einstein: "It was, of course, a lie what you read about my religious convictions, a lie which is being systematically repeated. I do not believe in a personal God and I have never denied this but have expressed it clearly. If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it."