An American statesman and lawyer who served as the 16th president of the United States.

German-born theoretical physicist who developed the theory of relativity.

An American author, coach, motivational speaker, and philanthropist.

A Greek philosopher and polymath. He founded the Peripatetic school of philosophy.

Writer and Philosopher. Author of The Fountainhead and Atlas Shrugged.

The 44th president of the United States and also the first black president.

A scientist, inventor, politician, philanthropist, and businessman.

An American business magnate, software developer, and philanthropist.

A psychiatrist and psychoanalyst who founded analytical psychology.

A naturalist, geologist, and biologist, who contributed to the science of evolution.

A comic actor and filmmaker who rose to fame in the era of silent film.

A spiritual teacher and author. He penned The Power of Now and A New Earth.