You know,
the German PHILOSOPHER,
The Big Bang Theory Season 5, Episode 7
of 17th century PHILOSOPHER
René Descartes.
The Big Bang Theory Season 12, Episode 10
The PHILOSOPHER
Henri Bergson
The Big Bang Theory Season 7, Episode 12
he was a PHILOSOPHER.
The Big Bang Theory Season 7, Episode 12
Persian PHILOSOPHER, Al-Ghazali
The Big Bang Theory Season 10, Episode 7