The Myers Briggs Type Indicator (MBTI) is one of many online personality diagnostic tests. Consisting of sixteen different personality types, the MBTI serves as a resource for identifying the personality types of not only contemporary test takers; MBTI allows us to retroactively evaluate the personality types of historical figures. Born into a middle-class Jewish family in the late 19th century, it would have been difficult to predict that Albert Einstein would have such a large impact on the understanding of the physical universe in the 21st century. Einstein's childhood experience, beliefs, and life events shaped not only his rigorous mathematical formulas and equations, but also his distinctive personality. BSM Consulting, author of High Level Description of the Sixteen Personality Types, suggests that Einstein's Myers-Briggs personality type is INTP, "The Thinker." According to MBTI and Einstein's biography, it can be deduced that, as an INTP, Albert Einstein was a creative thinker, highly valued knowledge, and was guided by theories and ideas. Einstein's ability to think "outside the box" is the quality that most defines the thinker's personality type. As explained by BSM Consulting, “INTPs live in the world of theoretical possibilities. They (INTP) live mostly in their own mind” (BSM, “The Thinker” par.2). Michio Kaku, the author of Einstein, Albert, writes that one of the most important influences on Einstein was Max Talmud (par.4). The Talmud introduced Einstein to a children's science series by Aaron Bernstein entitled Naturwissenschaftliche Volksbucher (translated, Popular Books on Physical Science) in which, among other adventures, the author imagines riding alongside electricity inside a wire telegraphic (Michio par.4). “Einstein then predicts… halfway through the paper… a truly greater understanding of nuclear physics for humanity. Einstein also won a Nobel Prize for later physicists and began working towards his ultimate dream, “a theory of everything” (Michio par.48). Although Einstein did not live to realize his dream, leading physicists around the world work tirelessly toward his dream of a theory of everything. Looking at Einstein's life, one can deduce that he definitely falls into the INTP "the thinker" category. in the MBTI. His curiosity and inquisitive mind have led humanity to a higher understanding of the universe and its surroundings. His thoughts and theories gave people a microscopic view of atoms as well as a macroscopic view of the universe. Creating a new path in modern physics, Einstein inspired many scientists and physicists to dream and challenge the status quo and enter the world of the unknown.