- Albert Einstein
The Nobel Prize-winning physicist, famous for his theory of relativity and contributions to quantum theory and statistical mechanics, when the entire world’s scientists swear by his theories and findings, Einstein himself was a school dropout at the age of 15. Deciding to continue his education a year later, Einstein took the entrance exam to the prestigious Swiss Federal Institute of Technology, but failed. He returned to high school, got his diploma, and then passed the university’s entrance exam on his second attempt.