- Dainin Katagiri
- John G. Hocking
- Desmond Mac Namara
- George McCarty
- Wei Wu Wei
- Gail S. Young
- Jon Jory
- Matthias Seidel
- James C. Glass
- Diana Fuss
- Charles Upton
- William H. Riker
- Dennis Roseman
- Edward Delavan Perry
- Paul Alexandroff
- René Guénon
- J. Campbell
- Titus Burckhardt
- Edvard Delavan Perry
- Herbert Westbrook