Stone is on the Adjunct Faculty of Meadville Lombard Theological School; is Emeritus Professor of Philosophy at William Rainey Harper College; is in Preliminary Fellowship with the Unitarian Universalist Association; and is a member of the Highlands Institute of American Religious and Philosophical Thought[2] and the Institute on Religion in an Age of Science (IRAS).

His doctorate thesis was done on The Secular Experiences OF Transcendence: The Contributions of Bernard Meland, H. Richard Niebuhr and Paul Tillich.

He helped organize the Danville Council on Human Relations which is said to have become the seed bed for the first Head Start program to receive funding.

It seeks to explore, develop and encourage spiritual ways of responding to the world on a completely naturalistic basis without a supreme supernatural being.

He includes analysis of nearly fifty distinguished philosophers, theologians, scientists, and figures in art and literature, both living and dead.

His history includes its birth from George Santayana to modern contributors such as Henry Nelson Wieman, Loyal Rue and Chet Raymo.