Philo (20 BCE – 50 CE), known also as Philo of Alexandria (Greek: Φίλων ὁ Ἀλεξανδρεύς), Philo Judaeus, Philo Judaeus of Alexandria, Yedidia, "Philon", and Philo the Jew, was a Hellenistic Jewish Biblical philosopher born in Alexandria.

Philo used philosophical allegory to attempt to fuse and harmonize Greek philosophy with Jewish philosophy. His method followed the practices of both Jewish exegesis and Stoic philosophy. His allegorical exegesis was important for several Christian Church Fathers, but he has barely any reception history within Judaism. "The sophists of literalness," as he calls the literalist Jews, "opened their eyes superciliously" when he explained to them the marvels of his exegesis. He believed that literal interpretations of the Hebrew Bible would stifle mankind's view and perception of a God too complex and marvelous to be understood in literal human terms.

Some scholars hold that his concept of the Logos as God's creative principle influenced early Christology. Other scholars, however, deny direct influence but say both Philo and Early Christianity borrow from a common source. For Philo, the Logos was God's "blueprint for the world", a governing plan.

Philo Taylor Farnsworth (August 19, 1906 – March 11, 1971) was an American inventor and television pioneer. Although he made many contributions that were crucial to the early development of all-electronic television, he is perhaps best known for inventing the first fully functional all-electronic image pickup device (video camera tube), the "image dissector", the first fully functional and complete all-electronic television system, and for being the first person to demonstrate such a system to the public. Farnsworth developed a television system complete with receiver and camera, which he produced commercially in the form of the Farnsworth Television and Radio Corporation, from 1938 to 1951.

In later life, Farnsworth invented a small nuclear fusion device, the Farnsworth–Hirsch fusor, or simply "fusor", employing inertial electrostatic confinement (IEC). Although not a practical device for generating nuclear energy, the fusor serves as a viable source of neutrons. The design of this device has been the acknowledged inspiration for other fusion approaches including the Polywell reactor concept in terms of a general approach to fusion design. Farnsworth held 165 patents, mostly in radio and television.

Joseph Frank "Buster" Keaton (October 4, 1895 – February 1, 1966) was an American comic actor, filmmaker, producer and writer. He was best known for his silent films, in which his trademark was physical comedy with a consistently stoic, deadpan expression, earning him the nickname "The Great Stone Face".

Buster Keaton (his lifelong stage name) was recognized as the seventh-greatest director of all time by Entertainment Weekly. In 1999, the American Film Institute ranked Keaton the 21st-greatest male star of all time. Critic Roger Ebert wrote of Keaton's "extraordinary period from 1920 to 1929, [when] he worked without interruption on a series of films that make him, arguably, the greatest actor-director in the history of the movies."

Orson Welles stated that Keaton's The General is "the greatest comedy ever made, the greatest Civil War film ever made, and perhaps the greatest film ever made."

A 2002 worldwide poll by Sight & Sound ranked Keaton's The General as the 15th best film of all time. Three other Keaton films received votes in the magazine's survey: Our Hospitality, Sherlock, Jr., and The Navigator.