Philosopher
Practitioners
Ernst Mayr
Samuel Taylor Coleridge
Barry Smith (ontologist)
Peter Marshall (author, born 1946)
Plato
Christina, Queen of Sweden
George Boolos
Mortimer J. Adler
Bruce Lee
Clare Palmer
Leon Trotsky
Matti Häyry
Grega Repovš
John Flavel (logician)
W. E. B. Du Bois
Michael Griffin
Susan Sherwin
Paul W. Franks
Fyodor Dostoevsky
Brihaspati