At the age of nineteen I was sent north to take my last year of preparatory education at Horace Mann School in New York where I was graduated with honors in mathematics...
[1]: 79 In lieu of a college program, Feibleman listed his readings with Friend in philosophy: "Plato and Aristotle, then reading the Stoics and Epicureans, the Neo-platonists, the medieval theologians, the Continental rationalists, the British empiricists, the German dogmatists, until we came again to modern philosophy where we found Reid and the early Moore, the early Russell, Nicolai Hartmann, Whitehead and Peirce the most congenial.
"[1]: 135 "In 1943, despite the fact that Feibleman had no college degree, Tulane University offered him his first academic position as acting assistant professor of English, hired to teach naval officers in training.
Using direct quotations with citations to the Collected Papers, Feibleman published An Introduction to the Philosophy of Charles S. Peirce in 1946 with The MIT Press, and Bertrand Russell wrote the foreword.
Feibleman put forth his system in Ontology (1951) where he posited three universes: essence or possibility, existence or actuality, and destiny or teleology.
In 1973 Northwestern University School of Law invited Feibleman to present a Rosenthal Lecture on philosophical perspectives on justice.