4. Albert Einstein

Score a big point for introverts as they have one of the smartest men ever falling into their category! When it came to being "passionately curious" while also finding a perfect balance between love of solitude and humanity, Albert Einstein was the master.

Einstein once said, "When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than any talent for abstract, positive thinking." By this he meant that introverts (like himself) tend to be deep thinkers and can come up with surprising connections between seemingly unrelated things. This is why people in the field of science do well having traits of an introvert.

Johnny Depp