A student once asked Albert Einstein, "Dr. Einstein, how many feet are there in a mile?" To the utter astonishment of the student, Einstein replied, "I don't know."

The student was sure the great professor was joking. Surely Einstein would know a simple fact that every schoolchild is required to memorize. But Einstein wasn't joking. When the student pressed for an explanation for this hiatus in Einstein's knowledge, he declared, "I make it a rule not to clutter my mind with simple information that I can find in a book in five minutes."

Albert Einstein was not interested in trivial data. His passion was to explore the deep things of the universe. His passion for mathematical and physical truth made him a pivotal fixture in modern world history.